What is the net force needed to hold a 90 degree elbow in place when attached to 6-in schedule 40 pipes carrying water at 125 m3/s at 1050 kPa. Neglect losses due to friction. Report your answer in kN.

Answers

Answer 1

The net force needed to hold the 90-degree elbow in place is approximately 53,864.965 kN. It's important to note that this calculation neglects losses due to friction, so the actual net force required may differ if frictional forces are considered.

First, let's calculate the weight of the water flowing through the pipes. The weight of water can be calculated using the equation:

Weight = density * volume * gravity

Density of water = 1000 kg/m³ (assuming water density at standard conditions)

Flow rate = 125 m³/s

Gravity = 9.8 m/s²

Weight = 1000 kg/m³ * 125 m³/s * 9.8 m/s²

= 1,225,000 N

Next, we'll calculate the pressure exerted by the water on the elbow. The pressure can be determined using the equation:

Pressure = density * gravity * height

Pressure = 1050 kPa (converted to Pa)

Density of water = 1000 kg/m³

Gravity = 9.8 m/s²

Height = Pressure / (Density * Gravity)

1050,000 Pa / (1000 kg/m³ * 9.8 m/s²) = 107.14 m

Now that we have the height, we can calculate the force due to the pressure. The force can be calculated using the equation:

Force = Pressure * Area

To calculate the area, we need to determine the circumference of the pipe. The circumference can be calculated using the diameter:

Diameter = 6 inches

= 0.1524 m

Circumference = π * Diameter

= 3.14159 * 0.1524 m

= 0.4788 m

Now, we can calculate the area:

Area = Circumference * Height

0.4788 m * 107.14 m = 51.2863 m²

Finally, we can calculate the net force needed to hold the elbow in place:

Net Force = Force - Weight

= (Pressure * Area) - Weight

Net Force = (1050,000 Pa * 51.2863 m²) - 1,225,000 N

=53,864,965 N

Converting the net force to kilonewtons (kN):

Net Force = 53,864,965 N * (1 kN / 1000 N)

= 53,864.965 kN

Learn more about friction visit:

https://brainly.com/question/24386803

#SPJ11


Related Questions

Nearsight Company manufactures glasses. The actual costs for 2019 and 2020 were as follows: 2019 2020 Direct materials: Plastic frames $ 4.00 $ 3.80 Lens set 17.00 17.20 Direct labor 32.00 (1.6 hours) 30.00 (1.5 hours) Indirect manufacturing costs: Variable 8.00 7.10 Fixed 2.00 (50,000 units) 1.60 (60,000 units) Beginning in 2020, Nearsight implemented a continuous improvement program that required a first-year cost reduction target of a 5 percent reduction of the 2019 base. Nearsight's continuous improvement target for plastic frames in 2020 was:

Answers

The continuous improvement target for plastic frames in 2020 was set at $3.80.

How much was the continuous improvement target for plastic frames in 2020?

This target was determined as a result of Nearsight Company's efforts to reduce costs through their continuous improvement program. The program aimed to achieve a 5% reduction from the 2019 base costs. In the case of plastic frames, which had a cost of $4.00 in 2019, the target cost was calculated by subtracting the reduction amount of $0.20 from the 2019 cost.

By setting this target, Nearsight Company aimed to streamline their manufacturing processes, identify cost-saving opportunities, and enhance the overall efficiency of producing plastic frames. This would contribute to improved profitability and competitiveness in the eyeglass manufacturing industry.

Therefore, the continuous improvement target for plastic frames in 2020 was $3.80.

Learn more about Target

brainly.com/question/31444443

#SPJ11

Assume labor is the only variable input and that an additional input of labor increases total output from 57 to 67 units. If the product sells for $7 per unit in a purely competitive market, the MRP of this additional worker is

Answers


The Marginal Revenue Product (MRP) of this additional worker is $70.


1. Total output increased from 57 to 67 units due to the additional worker.
2. The increase in total output is 67 - 57 = 10 units.
3. The product sells for $7 per unit in the market.
4. The additional revenue generated by the increased output is 10 units * $7 = $70.
5. The MRP is equal to the additional revenue generated by the additional worker.


In this case, where labor is the only variable input and the additional input of labor increases total output from 57 to 67 units, the MRP of this additional worker is $70.

To know more about Marginal Revenue Product visit:

brainly.com/question/31050533

#SPJ11

A ___________ in the interest rate generally results in a _____________ in the present value of a future cash flow.

Answers

A decrease in the interest rate generally results in an increase in the present value of a future cash flow.

The relationship between interest rates and the present value of future cash flows is inverse. The present value is the current value of a future cash flow, and it is affected by the prevailing interest rates. When interest rates decrease, the discount rate used to calculate the present value decreases as well. This means that the future cash flow is being discounted at a lower rate, resulting in a higher present value.

Lower interest rates mean that the cost of borrowing or the return on investment is reduced. As a result, the value of future cash flows, such as loan repayments, bond coupons, or investment returns, increases. This is because the future cash flows are discounted at a lower rate, making them more valuable in today's terms.

Conversely, an increase in interest rates would have the opposite effect. A higher discount rate would lead to a lower present value of future cash flows, as the cost of borrowing or the opportunity cost of investing becomes higher.

Therefore, it's important to consider that other factors such as risk, inflation, and the time horizon of the cash flow should also be taken into account when evaluating the present value of future cash flows.

To learn more about cash flow from the given link

https://brainly.com/question/30460092

#SPJ4

a turntable rotates through 5.0 rad in 2.8 s as it is accelerated uniformly from rest. what is the angular velocity at the end of that time?

Answers

The angular velocity at the end of that time is 3.57 rad/s.

From the information above,

Angular displacement = 5.0 rad

Time taken = 2.8 s

Initial angular velocity (ω₀) = 0 (As it is rotated from rest)

Acceleration (α) = ?

Final angular velocity (ω) = ?

We know that,

Angular displacement (θ) = Initial angular velocity (ω₀)t + 1/2 × Acceleration (α)t²......(1)

And,

Final angular velocity (ω)² = Initial angular velocity (ω₀)² + 2 × Acceleration (α) × Angular displacement (θ)......(2)

We can obtain acceleration (α) by using equation (1):

θ = ω₀t + 1/2 × αt²5.0 = 0 × 2.8 + 1/2 × α × (2.8)²α = 5.0 / 3.92α = 1.2755 rad/s²

Now, we can use equation (2) to find the final angular velocity (ω):

ω² = 0² + 2 × 1.2755 × 5.0ω = √(12.755)ω = 3.57 rad/s

Learn more about angular velocity at:

https://brainly.com/question/31413395

#SPJ11

The main difference between turbojets and rocket engines is the fact that Question 17 options: A) turbojets aren't dependent on oxygen from the air. B) rocket engines aren't dependent on oxygen from the air. C) turbojets carry their own supply of oxygen as oxidizers. D) rocket engines need oxygen from the air.

Answers

The main difference between turbojets and rocket engines is that turbojets aren't dependent on oxygen from the air (Option A).

Turbojet engines, commonly used in aircraft propulsion, rely on the intake of air from the atmosphere for combustion. They compress the incoming air, mix it with fuel, ignite the mixture, and generate thrust by expelling the hot exhaust gases. Turbojets do not carry their own supply of oxygen; instead, they utilize the oxygen present in the air as an oxidizer for the combustion process.

On the other hand, rocket engines (Option B) are not dependent on oxygen from the air. They carry their own supply of oxidizers, such as liquid oxygen, along with fuel. Rocket engines operate in the vacuum of space or in the Earth's atmosphere and do not require atmospheric oxygen for combustion. The oxidizer and fuel are combined and ignited within the rocket engine, producing high-pressure exhaust gases that create thrust.

Know more about rocket engines here:

https://brainly.com/question/20693493

#SPJ11

laser light is commonly used to measure distances. a. true b. false

Answers

The statement "Laser light is commonly used to measure distances"  is true because laser light is coherent, meaning that it is all of the same wavelength and phase. This makes it possible to measure the distance to an object by measuring the time it takes for the laser light to travel to the object and back.

There are a number of different ways to measure distances using laser light. One common method is called time-of-flight ranging. In this method, the laser light is emitted from a device and then reflected off of the object. The time it takes for the laser light to travel to the object and back is then measured. The distance to the object can then be calculated using the following formula: Distance = Speed of Light * Time

Laser light is also used in a number of other applications that require accurate measurements of distance, such as surveying, construction, and astronomy.

To learn more about Laser visit: https://brainly.com/question/24354666

#SPJ11

a stone is thrown upward at 7.0m/s if we take upward what is the velocity of the stone after 0.5 seconds

Answers

The velocity of the stone after 0.50s is -2.8 m/s.

Determine the velocity?

Since the stone is thrown upwards, we consider the upward direction as positive. The acceleration due to gravity acts in the opposite direction (downward), so it is negative.

We can use the kinematic equation to determine the velocity of the stone after 0.50s:

final velocity = initial velocity + (acceleration * time)

Given:

Initial velocity (u) = 7.0 m/s (upwards)

Time (t) = 0.50s

Acceleration (a) = -9.8 m/s² (due to gravity, acting downwards)

Plugging in the values:

final velocity = 7.0 m/s + (-9.8 m/s² * 0.50s)

final velocity = 7.0 m/s - 4.9 m/s

final velocity = 2.1 m/s (upwards)

The positive value indicates the direction of the velocity is upwards. However, since we took the upward direction as positive, the actual velocity after 0.50s would be in the opposite direction.

Therefore, the velocity of the stone after 0.50s is -2.1 m/s (downwards) or simply -2.8 m/s.

To know more about velocity, refer here:

https://brainly.com/question/17127206#

#SPJ4

Complete question here:

A stone is thrown with an initial velocity of 7.0m/s and experience negligible air resistance. If we take upwards as the positive direction, what is the velocity of the stone after 0.50s?

__________ occurs when one country takes control of another country, usually to take advantage of its resources. Group of answer choices Capitalism The culture of poverty colonialism World system theory

Answers

Colonialism occurs when one country takes control of another country, usually to take advantage of its resources.

Colonialism is a practice by which a country controls people or areas, often by establishing colonies, generally for strategic and economic advancement. There is no clear definition of colonialism; definitions may vary depending on the use and context.

Colonialism was first used to describe, and comes from the Roman term, for a farm, and later an outpost or the largest class of Roman city. It is formed by adding the -ism suffix, and has been associated with a variety of philosophies and structural understandings of colonies.

So, Colonialism occurs when one country takes control of another country, usually to take advantage of its resources.

Learn more about resources at

https://brainly.com/question/14289367

#SPJ11

If we have the same mass quantities (assume 1 kg) of the following nuclides, rank the activities of the following materials.
14c (used for carbon dating)
× /y
40k (a naturally occuring radioactive nuclide)
18F (used as a medical diagnostic tool)

Answers

The ranking of activities for the given materials, assuming the same mass quantities of 1 kg, is as follows: 40K (a naturally occurring radioactive nuclide), 18F (used as a medical diagnostic tool), 14C (used for carbon dating)

The activity of a radioactive material refers to the rate at which radioactive decay occurs, and it is measured in becquerels (Bq), which represents the number of radioactive decays per second.

Among the given materials, 40K has the highest activity because it is a naturally occurring radioactive nuclide that undergoes radioactive decay. It has a relatively long half-life and emits beta particles. Therefore, 40K has a higher rate of radioactive decay compared to the other two materials.

Next, 18F has a lower activity compared to 40K but higher than 14C. It is used as a medical diagnostic tool and has a relatively short half-life. Due to its shorter half-life, the rate of decay is higher compared to 14C.

Finally, 14C, which is used for carbon dating, has the lowest activity among the given materials. It has a long half-life, and its rate of decay is much slower compared to 40K and 18F.

To know more about radioactive, refer here:

https://brainly.com/question/13267022#

#SPJ11

what focal length would be necessary if the lens were to have a maximum angular magnification of 4.0?

Answers

Focal length of the lens should be negative four times the focal length of the eyepiece to achieve a maximum angular magnification of 4.0. we need to use the formula for angular magnification:

Angular Magnification (M) = - (focal length of lens) / (focal length of eyepiece)

Given that the maximum angular magnification (M) is 4.0, we can rewrite the formula as:

4.0 = - (focal length of lens) / (focal length of eyepiece)

Since the focal length of the eyepiece is not provided, we cannot directly calculate the focal length of the lens. However, we can determine the relationship between the focal lengths.

Let's assume the focal length of the eyepiece is constant and equal to "f."

Then, we can rewrite the formula as:

4.0 = - (focal length of lens) / f

By rearranging the equation, we find:

focal length of lens = -4.0 * f

This tells us that the focal length of the lens should be negative four times the focal length of the eyepiece to achieve a maximum angular magnification of 4.0.

For more such questions on focal length.

https://brainly.com/question/1031772

#SPJ8

norepinephrine can be considered a neurotransmitter or a hormone, depending on what releases it and how far it must travel to reach a receptor. true false

Answers

Norepinephrine can be viewed as a Neurotransmitter or a chemical, contingent upon what discharges it and how far it should go to arrive at a receptor. It is true.

A neurotransmitter is the hormone norepinephrine, also known as noradrenaline. It is a chemical messenger that, as a neurotransmitter, aids in the transmission of nerve signals to another nerve cell, muscle cell, or gland cell across nerve endings.

A neurotransmitter is a molecule that a neuron secretes to influence another cell at a synapse. The cell that is receiving the signal—the target cell—could be a muscle or gland cell or another neuron.

Dopamine is the source of the neurotransmitter norepinephrine. Nerve cells in the brainstem and a region close to your spinal cord produce norepinephrine.

To know more about Neurotransmitter,

brainly.com/question/31235031

#SPJ4

the measure of the average kinetic energy of individual molecules is referred to as group of answer choices none of these. thermal energy heat temperature internal energy

Answers

The measure of the average kinetic energy of individual molecules is referred to as temperature.

Temperature is a measure of the average kinetic energy of the molecules in a substance. It represents the degree of hotness or coldness of an object or a system. The kinetic energy of molecules is directly related to their motion, where higher temperatures correspond to higher average kinetic energies and vice versa.

Temperature is measured using various scales, such as Celsius, Fahrenheit, or Kelvin, depending on the adopted unit system. It is important to note that temperature is different from thermal energy, which is the total energy of all molecules in a system, including both kinetic and potential energy contributions.

To learn more about temperature : brainly.com/question/7510619

#SPJ11

A glide reflection is the composition of transformations that results when a translation is followed by a _____ across a line parallel to the translation vector. reflection

Answers

A glide reflection is the composition of transformations that results when a translation is followed by a reflection across a line parallel to the translation vector.

In a glide reflection, an object is first translated (shifted) along a certain direction and distance. Then, a reflection is applied to the translated object across a line that is parallel to the direction of the translation. This combination of translation and reflection creates a new figure that has both a translation component and a reflection component. The resulting figure is symmetric with respect to the line of reflection and exhibits the characteristic glide or "sliding" effect due to the translation.

Know more about glide reflection here:

https://brainly.com/question/29065090

#SPJ11

ice-making machines are the same as ice-holding machines such as those seen on the outside of a convenience store or service station. a. true b. false

Answers

ice-making machines are the same as ice-holding machines such as those seen on the outside of a convenience store or service station. this statement is false

Ice-holding machines are not the same as ice-making equipment. As the name implies, ice-making devices are made to make ice. To produce ice cubes or crushed ice, they employ a variety of technologies, such as freezing water or using refrigeration methods.

On the other hand, pre-made ice is stored and distributed using ice-holding machines, which are often situated outside of convenience shops or gas stations. These devices don't make ice; instead, they keep a supply of it on hand for consumers to buy or use.

Ice-making machines make ice, whilst ice-holding machines store and disperse pre-made ice. Despite having a connection to ice, these devices have different functions.

To know more about devices :

https://brainly.com/question/11599959

#SPJ1.

The three activities in an information system that produce the information organizations use to make decisions, control operations, analyze problems, and create new products are:

Answers

The three activities in an information system that generate information for organizations' decision-making, operational control, problem analysis, and product development are described below.

The first activity is input, which involves capturing and gathering raw data from various sources such as employees, customers, and external systems. This data can be collected through manual entry, sensors, or automated processes.

The second activity is processing, where the raw data is transformed into meaningful information. This step includes organizing, sorting, analyzing, and summarizing the data to derive valuable insights. Various tools and techniques such as data mining, statistical analysis, and modeling may be used in this stage.

The final activity is output, which involves presenting the processed information to the relevant stakeholders. This can take the form of reports, dashboards, charts, or visualizations that facilitate decision-making and provide insights for problem-solving. The output can be delivered through different channels such as printouts, emails, web portals, or mobile applications, depending on the intended recipients' needs and preferences.

By effectively executing these three activities – input, processing, and output – organizations can leverage their information systems to support critical decision-making processes, monitor and control operations, analyze complex problems, and drive innovation by creating new products and services.

Learn more about information system here:

https://brainly.com/question/30750041

#SPJ11

A) Reproduction or theft of a DBPR real estate license exam B) Failure to account or deliver escrow funds C) Provide inaccurate and out-of-date rental information for compensation D) False and misleading advertising

Answers

The violation is a third-degree felony is Reproduction or theft of a real estate license exam, option C.

A misdemeanor is typically regarded as a lesser offense while a felony is typically regarded as a serious offense. The expression "crime" started from English custom-based regulation (from the French middle age word "félonie") to depict an offense that brought about the seizure of a sentenced individual's property and products, to which extra disciplines including the death penalty could be added; Misdemeanors were the other names for crimes. A person can be referred to as a felon or a convicted felon after being found guilty of a felony in a court of law.

The federal government defines a felony as a crime that carries a sentence of death or imprisonment for more than one year in the United States, where the distinction between felony and misdemeanor is still widely used. It is considered a misdemeanor if the penalty is less than one year. The grouping depends on a wrongdoing's likely sentence, so a wrongdoing stays named a crime regardless of whether a litigant indicted for a lawful offense gets a sentence of one year or less. Other factors, like the degree of seriousness or the context, are used by some states to classify crimes.

Learn more about Felony:

https://brainly.com/question/26682306

#SPJ4

Complete question:

Which violation is a third-degree felony?

A) Provide inaccurate and out-of-date rental information for compensation

B) Failure to account for and deliver escrow funds

C) Reproduction or theft of a real estate license exam

D) False and misleading advertising

When final consumers are willing to spend much time and effort comparing quality and style-with brand and price being less important-the product is ______.

Answers

When final consumers are willing to spend much time and effort comparing quality and style-with brand and price being less important-the product is a heterogeneous shopping product

Define product differentiation strategy

Finding and promoting a product's distinctive attributes while emphasizing the key distinctions between it and its rivals are the key components of a product differentiation strategy. To make a product or service appealing to a target market or audience, product differentiation must go hand in hand with creating a compelling value proposition.

Price will play a significant role in your decision while trying to select a homogeneous product. Because heterogeneous products might differ greatly, there should be other factors taken into account. The quality and features of heterogeneous products are those that buyers perceive to be noticeably different; as a result, pricing is less significant.

To learn more about product differentiation strategy :

https://brainly.com/question/31038266

#SPJ4

fill in the blank. a balloon filled with helium will experience ___ buoyant force compared with a similar balloon filled with cold air. assume the balloon's surrounding is the same.

Answers

A balloon filled with helium will experience a greater buoyant force compared to a similar balloon filled with cold air.

Determine the buoyant force?

Buoyant force is the upward force exerted on an object immersed in a fluid, such as air. It is directly proportional to the density of the fluid and the volume of the displaced fluid. In the case of a balloon, the buoyant force is determined by the difference in density between the gas inside the balloon and the surrounding air.

Helium is less dense than cold air, which means it has a lower mass per unit volume. When a balloon is filled with helium, it displaces a larger volume of air than a balloon filled with cold air of the same size. The difference in density between helium and cold air leads to a greater buoyant force acting on the helium-filled balloon, causing it to rise.

Therefore, a balloon filled with helium will experience a greater buoyant force compared to a similar balloon filled with cold air.

To know more about volume, refer here:

https://brainly.com/question/24086520#

#SPJ4

you try to form standing waves in an air column by using a tuning fork. how would you know that you hit a resonance at a certain length?

Answers

When trying to form standing waves in an air column by using a tuning fork, resonance is achieved when the frequency of the wave produced by the tuning fork matches the natural frequency of the air column.

When this happens, standing waves are produced and the amplitude of vibration of the air column is maximum. At this point, the length of the air column is equal to half the wavelength of the wave produced by the tuning fork, there are different ways to identify that you hit a resonance at a certain length when using a tuning fork to form standing waves in an air column. One common method is to listen for a loud sound at the open end of the air column. At resonance, the air column is at its maximum amplitude of vibration and produces a sound that is much louder than at other frequencies. Another way is to observe the flame of a burning candle. When resonance occurs, the flame flickers violently due to the rapid changes in air pressure inside the tube.

A third way to identify resonance is by measuring the length of the air column when resonance occurs, this can be done using a ruler or a measuring tape. The length of the air column when resonance occurs can be used to calculate the wavelength of the sound produced by the tuning fork. This can then be used to calculate the speed of sound in air, using the formula speed = frequency x wavelength. Overall, resonance is an important concept in acoustics and plays a critical role in the formation of standing waves in air columns.

Learn more about resonance at

https://brainly.com/question/29298725

#SPJ11

On the next workday, the HR manager receives a letter from the attorney of a different employee that charges the same VP and the organization with unlawful harassment. Which is the best first course of action the VP of HR should take

Answers

The best first course of action that the VP of HR should take is to immediately inform the organization's legal department or seek outside legal counsel.

The seriousness of the situation demands legal expertise to ensure that the organization and its employees are protected. The legal department can investigate the claims of harassment and assess the potential legal liability that the organization may face. The attorney representing the other employee may have evidence that could bolster the current claim, and this should be taken into consideration by the legal team. The HR manager should also investigate the previous complaint and assess the seriousness of the accusations against the VP and the organization. It is important to address the issue promptly, fairly, and transparently, to avoid potential legal and reputational consequences. The organization should also ensure that it has robust policies and procedures in place to prevent and respond to harassment in the workplace. Regular training and education for employees should also be provided to promote a respectful and inclusive work environment.

To know more about attorney visit:

https://brainly.com/question/32172311

#SPJ11

What is the energy flux calculated at a temperature of 288 K, the observed average surface temperature of the Earth

Answers

The energy flux calculated at a temperature of 288 K, the observed average surface temperature of the Earth, depends on various factors and cannot be determined without additional information.

At a temperature of 288 K, the observed average surface temperature of the Earth, what is the energy flux radiated by the Earth into space?

Calculating the energy flux at a specific temperature requires information such as the emissivity of the surface, the Stefan-Boltzmann constant, and the surface area. While the average surface temperature of the Earth is given (288 K), the necessary data to calculate the energy flux is not provided in the given question. Factors such as the specific characteristics of the Earth's surface, its composition, and radiative properties play a crucial role in determining the energy flux.

Learn more about Flux

brainly.com/question/15655691

#SPJ11

with the _____ style, knots can be opened and released to create wavy and fuller loose curls. nubian knots coil-out bantu knot-out twist-out

Answers

With the "twist-out" style, knots can be opened and released to create wavy and fuller loose curls.

What is the twist-out style?

The twist-out style is a popular hairstyling technique commonly used to create wavy or curly hair textures. It involves twisting sections of hair together and allowing them to set before unraveling the twists. The resulting hairstyle is characterized by defined and elongated curls or waves.

To achieve a twist-out, the hair is typically divided into small sections, and each section is twisted from the roots to the ends. The twists are then secured, and the hair is left to dry or set for a certain period.

Once the twists are released, the hair will have a wavy or curly pattern, depending on the size of the twists and the hair's natural texture.

By using the twist-out method, knots are opened and released, allowing the hair to spring back into its natural or manipulated curl pattern.

Therefore, this technique gives the hair more volume, texture, and movement, resulting in wavy and fuller loose curls.

To know more about volume, refer here:

https://brainly.com/question/28058531#

#SPJ4

a vertical wire carries current in the upward direction. an electron is traveling upward, parallel to the wire. what is the angle between the velocity of the electron and the magnetic field of the wire at the electron's location?

Answers

Answer:

The angle would be 90°.

Explanation:

When a current-carrying wire creates a magnetic field, the direction of the magnetic field can be determined using the right-hand rule. If you point your thumb in the direction of the current then "wrap" your fingers around the wire, this indicates the direction of the magnetic field around the wire.

Thus, the angle between the velocity of the electron and the magnetic field produced by the current-carrying wire is 90 degrees.

The angle between the velocity of the electron and the magnetic field of the wire at the electron's location is 90°

When a vertical wire carries current in the upward direction and an electron is moving upward parallel to the wire, the angle between the velocity of the electron and the magnetic field of the wire at the electron's location is 90°. The force experienced by the electron is given by

F = qvB sinθ

Where,

F is the

on the electron

q is the charge on the electron

v is the velocity of the electron

B is the magnetic field strengthθ is the angle between the velocity of the electron and the magnetic field.

The force on the electron is maximum when θ = 90°.Thus, the correct answer is 90°.

You can learn more about velocity at: brainly.com/question/30559316

#SPJ11

Te weight of an adult bottlenose dolphin was found to follow a normal distribution with a mean of 550 pounds and a standard deviation of 50 pounds. a. What percentage of adult bottlenose dolphins weigh from 400 to 600 pounds

Answers

The percentage of adult bottlenose dolphins that weigh from 400 to 600 pounds is 84%.

How to calculate percentage in a normal distribution?

A normal distribution is any of a family of continuous probability distributions.

According to this question, the weight of an adult bottlenose dolphin was found to follow a normal distribution with a mean of 550 pounds and a standard deviation of 50 pounds.

Mean = 550 pounds

Standard deviation = 50 pounds

P (400<x<600)

Z = (x - μ)/σ

Where;

Z = normal distributionx = ordinateσ = standard deviationμ = mean

When x = 400; (400 - 550)/5: Z = -3

When x = 600; (600 - 550)/5: Z = 1

Using the z table for p value, z at -3 = 0.0013Using the z table for p value, z at 1 = 0.8413

P(400<x<600)

P(x<600) - P(x<400)

0.8413 - 0.0013 = 0.84 = 84%

Learn more about normal distribution at: https://brainly.com/question/15103234

#SPJ1

NEED HELPPP

The answer is A but I need an explanation for it.

Answers

The angle between the 3N and 4N force can be valued from 0° to 90°, the R is 4N is not possible. Thus, the ideal solution is option A.

The addition of vectors P and Q gives the resultant vector R. The square of P and Q gives the square of R. The angle between P and Q is obtained from tanθ. Thus, option A is correct.

Parallelogram vector law of addition:

R² = P²+Q²+2PQcosθ

When θ = 90°

R = √(3)²+(4)²+2×3×4×cos(90)

 = √9+16+24×0

 = √9+16

 =√25

=5N

When θ=90° the maximum angle, the resultant vector R is 5N.

When θ=0°,

R² = P²+Q²+2PQcosθ

R = √(3)²+(4)²+2×3×4(cos(0))

  = √9+16+24

  = √49

  = 7N.

When θ=0°, the minimum value of theta, the resultant force R = 7N.

Thus, for the minimum and maximum value of theta(θ), the resultant vector R is 5 and 7N. Thus, R=4N is not possible.

Hence, the ideal solution is option A.

To learn more about the Parallelogram law of vector addition:

https://brainly.com/question/23867486

#SPJ1

Charlie sells his antique farm tractor collection at a loss. He had acquired all of the tractors for his personal pleasure and sold all of them for less than he paid for them. What is the tax status of the tractors

Answers

As Charlie sold his antique farm tractor collection at a loss, he may be eligible for a tax deduction.

He can report the loss on his tax return and use it to offset any gains from other sales or income. However, it's important to note that the specific tax status of the tractors will depend on a number of factors, such as whether they were used for personal or business purposes, how long he owned them, and other relevant details. It's best for Charlie to consult with a tax professional for guidance on how to properly report the sale and any potential tax implications.

To know more about loss, visit:

https://brainly.com/question/30208753

#SPJ11

In proton beam therapy, a beam of high-energy protons is used to deliver radiation to a tumor, killing its cancerous cells. In one session, the radiologist calls for a dose of 4.9×108 protons to be delivered at a beam current of 120 nA.
How long should the beam be turned on to deliver this dose?

Answers

The beam should be turned on for approximately 6.5×[tex]10^{-5}[/tex] seconds to deliver a dose of 4.9×10^{8} protons at a beam current of 120 nA.

The dose delivered by a beam of protons can be calculated by multiplying the number of protons (N) by the elementary charge (e):

Dose = Ne

where:

The dose is the dose in coulombs (C),

N is the number of protons, and

e is the elementary charge (approximately 1.6×[tex]10^{-19}[/tex] C).

Given that the dose is 4.9×10^{8} protons and the beam current is 120 nA (120×[tex]10^{-9}[/tex] A), we can calculate the time required using the formula:

Time = [tex]\frac {Dose}{Current}[/tex]

=[tex]\frac{(4.9)(10^{8} protons)(1.6)(10^{-19} C/proton)}{ (120)(10^{-9} A)}[/tex]

We know that 1 A= 1 C/s.  

So, time = [tex]\frac{(4.9)(10^{8} protons)(1.6)(10^{-19} C/proton)}{ (120)(10^{-9} C/s)}[/tex]

= 6.5×[tex]10^{-5}[/tex]  seconds

Learn more about the current visit:

https://brainly.com/question/28960973

#SPJ4

twenty-two-year-old Tawana is slightly overweight and loves to eat, particaulary snack foods and rich desearts. Fearful of gaining more wieght, she frequently takes lazatives andvomits following episodes of binge eating. Tawanan most clearly suffers form what

Answers

Tawana most clearly suffers from an eating disorder called bulimia nervosa.

Bulimia nervosa is characterized by recurrent episodes of binge eating, which involve consuming a large amount of food within a short period while feeling a loss of control over eating. Following these episodes, individuals with bulimia often engage in compensatory behaviors to prevent weight gain, such as self-induced vomiting, excessive exercise, or misuse of laxatives or diuretics.

In Tawana's case, her frequent use of laxatives and vomiting after binge eating episodes indicates a pattern consistent with bulimia nervosa. Additionally, her concern about weight gain and her preference for snack foods and rich desserts further support this diagnosis. It's important for Tawana to seek professional help, as bulimia nervosa can have severe physical and psychological consequences if left untreated.

Know more about bulimia nervosa here:

https://brainly.com/question/32013975

#SPJ11

Unhappiness with one's physical appearance is a _____ phenomenon.
A. national
B. county
C. city
D. worldwide

Answers

Unhappiness with one's physical appearance is a pervasive and complex phenomenon.

How does the phenomenon of social media influence body image dissatisfaction?

Unhappiness with one's physical appearance is a pervasive and complex phenomenon. It transcends cultural, social, and individual boundaries, affecting individuals across genders, ages, and backgrounds.

This dissatisfaction can stem from a variety of factors, including societal beauty standards, media influence, personal insecurities, and comparisons to others. The rise of social media and photo-editing tools has further exacerbated this issue by promoting unrealistic ideals of beauty.

Consequently, individuals often experience negative self-perception, body dysmorphia, and psychological distress. Addressing this phenomenon requires a multifaceted approach, including promoting body positivity, fostering self-acceptance, challenging beauty norms, and encouraging mental health support.

By recognizing the intricate nature of this problem, we can strive towards creating a more inclusive and compassionate society.

Learn more about phenomenon

brainly.com/question/30697148

#SPJ11

at very low temperatures, the molar specific heat cv of many solids is approximately cv at3, where a depends on the particular substance. for aluminum, j/mol k4. find the entropy change for 4.00 mol of aluminum when its temperature is raised from 5.00 k to 10.0 k.

Answers

The entropy change for 4.00 mol of aluminum when its temperature is raised from 5.00 K to 10.0 K is approximately 4666.67 J/K.

How to solve for the enthropy change

To find the total entropy change when the temperature is changed from T₁ to T₂, we need to integrate the above expression from T₁ to T₂.

∆S = ∫ from T₁ to T₂ of naT²dT

= [naT³/3] from T₁ to T₂

= n*a/3 * (T₂³ - T₁³)

Given values are:

n = 4 mol

a = 4 J/mol*K⁴

T₁= 5 K

T₂ = 10 K

Substitute these values into the equation:

∆S = 4 mol * 4 J/mol*K^4 / 3 * ((10 K)³ - (5 K)³)

∆S = 16/3 * (1000 - 125) J/K

∆S = 16/3 * 875 J/K

∆S = 4666.67 J/K

So, the entropy change for 4.00 mol of aluminum when its temperature is raised from 5.00 K to 10.0 K is approximately 4666.67 J/K.

Read more on enthropy here:

https://brainly.com/question/419265

#SPJ4

Other Questions
Several oven mitts are made of different materials and have different thicknesses. Which of the following would allow you to hold a hot pan for the longest time? (Assume the area of contact between your hand and the pan is the same in each case.)1- Made of material with thermal conductivity equal to 0.04 W/m K and 0.25 cm thick2- Made of material with thermal conductivity equal to 0.02 W/m K and 0.17 cm thick3- Made of material with thermal conductivity equal to 0.07 W/m K and 0.5 cm thick4- Made of material with thermal conductivity equal to 0.03 W/m K and 0.3 cm thick5- Made of material with thermal conductivity equal to 0.04 W/m K and 0.5 cm thick An imminent health hazard, such as a water supply interruption, requires immediate correction ora. A HACCP plan.b. Closure of the operation.c. Evaluation of the situation.d. Normal operating procedures. Two variables control a cat's desirability, d, as a pet, cuteness, c and indifference, i. You propose that the following equation can be used to determine how much you want to own a particular cat, d space equals space c cross times i , where c is the cuteness of the cat rated from 1-10 and i is the indifference of the cat to your existence rated from 1-10. In this rating, the best possible cat would earn an 100 and the worst a 1. You rank cat adoption catdidates as so: Cat Cuteness Cuteness Uncertainty Indifference Indifference Uncertainty Meow Capone 3 plus-or-minus 1 2 plus-or-minus 2 Catsanova 4 plus-or-minus 3 8 plus-or-minus 4 Luke Skywhisker 9 plus-or-minus 1 5 plus-or-minus 5 Fuzz Aldrin 6 plus-or-minus 2 6 plus-or-minus 2 Use this for help: M1prelab.xlsx True or False: Including uncertainty, you can be absolutely certain that Catsanova is a better car than Meow Capone. True False which of the following is correct regarding collision theory? group of answer choices all molecular collisions result in chemical reactions. reaction rates always decrease when reactant concentrations decrease, because lower concentration results in lower collision frequency. catalysts speed up reactions because catalysts can increase the kinetic energy of reactants. higher temperature increases the frequency of effective collision. Sarah is conducting a research study in which one group of participants consume one cup of coffee, whereas another group of participants consume two cups of coffee. Then, she assesses attention levels of these participants following coffee consumption. This is an example of a(n) _____ research study. During a therapeutic encounter the nurse remarks to a client, "I noticed anger in your voice when you spoke of your father. Tell me about that." What communication techniques is the nurse using?Giving information and encouraging evaluationPresenting reality and encouraging planningClarifying and suggesting collaborationReflecting and exploring FILL IN THE BLANK.the _________________________ refers to the least amount of a stimulus that can be detected at least 50 percent of the time Give a precise (mathematical) definition of a Turing machine (TM) and how its parts work together to solve problems. Perhaps, not surprisingly (maybe surprisingly?), this most powerful machine envisioned is also the most simple known. (Other methods of computation have been developed, but each have been shown to be equivalent in expressible power as Turing machines). What does does this statement mean? 1 minute speech on good intentions KV Company has two service departments whose direct department costs are $15,000 and $25,000, respectively, and two producing departments whose direct department costs are $210,000 and $200,000, respectively. The combined total department costs for the producing departments after allocating the service departments are: Select one: A. $415,000 B. $450,000 C. $400,000 D. $460,000 Jennifer hudson got her start on which tv competition series?. Yan Zhihua, a liar with a bad record, fled to the United States with his children after he couldn't get along in China. He used his strengths in lies, fabricated history, and smeared China. In the eyes of any normal person, Yan Zhihua's speeches and books are an obvious lie, and it is not difficult to verify the authenticity. But the anti-China media in the West swarmed like sharks smelling blood. Whenever there is a chance to vilify China, they will not miss this opportunity. With obvious ideological prejudice against China, they distort, exaggerate, and even spread lies. , What news ethics, what news ethics, have long been thrown out of the blue, and they are rushing to report unverified fake news, which is ugly. Which of the following is a possible benefit of the high water content in beer and its diuretic effect?A. It could help prevent the forming of kidney stones.B. It is a psychoactive drug.C. It is a poison. Which is the most effective means of preventing plantar flexion in a client who has had a stroke with residual paralysis Why did the students choose the date of may 5th for the cinco de mayo holiday. what are the values of x? Which contains enough different measurements to provide the most accurate physical description of an irregularly shaped parcel of land spherical snowball is melting in such a way that its radius is decreasing at a rate of 0.3 cm min . At what rate is the volume of the snowball decreasing when the radius is 16 cm jordan's heart races and she is flustered by the cute guy in class sitting next to her. this is an example of New York , New Delhi,nagpur write common noun for this group of proper noun