what is the si unit for the strength of the magnetic field?

"For an earth satellite in circular orbit, the values that do not change are speed, gravitational force and distance from the Earth."

Although its velocity changes, its speed does not. Acceleration suggests a change in velocity but does not always imply a change in speed. An trajectory that is perfectly balanced and has a constant speed is called a circular orbit. Every turn in the circular path sees a change in orientation.

A satellite in a circular orbit is not affected by gravity's force because the force is needed to alter the satellite's direction of travel, not its speed. A satellite moves in a circular pattern with a consistent speed known as uniform circular motion.

The distance from the earth to the satellite is also constant as the satellite only moves in the fixed orbit.

Thus, for an earth satellite in circular orbit, the values that do not change are speed, gravitational force and distance from the Earth.

To know more about satellites:

https://brainly.com/question/2166099

#SPJ4

The steps in the evolution of a low-mass star in order will be a clump forms in a giant molecular cloud, a protostar forms, hydrogen fusion begins, the star moves onto the red giant branch, a helium flash emerges, and the star moves onto the horizontal branch.

The star shifts onto the asymptomatic giant branch, the star sheds mass, producing a nebula and the white dwarf cools. Low-mass stars spend billions of years fusing hydrogen to helium in their hearts via the proton-proton chain. They usually have a convection area and the movement of the convection zone discerns if the star has an activity analogous to the sunspot cycle on our sun. Some small stars have extremely profound convection zones. Some of these stars also rotate exceedingly fast which wrenches their magnetic fields.

To learn more about low-mass stars visit here:

https://brainly.com/question/18253124

#SPJ4

The velocity of the two-block system at the top of the ramp is half the initial velocity of the second block. However, the force due to gravity exerted on both blocks as they travel up the ramp is not relevant to the conservation of momentum because it is a conservative force that does not affect the total momentum of the system.

The total momentum of the system before the collision is equal to the momentum of the second block, which is given by:

p = mv0

where m is the mass of each block, and v0 is the initial velocity of the second block.

After the collision, the two blocks move together with an unknown velocity vr. The total momentum of the system after the collision is:

p' = (2m)vr

where 2m is the total mass of the two blocks, and vr is the final velocity of the system.

The conservation of momentum states that the total momentum of an isolated system remains constant, provided no external forces act on it. Therefore, the total momentum of the system before the collision is equal to the total momentum of the system after the collision:

p = p'

Substituting the expressions for p and p' gives:

mv0 = (2m)vr

Simplifying gives:

vr = v0/2

The velocity of the system can be measured to confirm that the conservation of momentum applies to the system.

Learn more on velocity here https://brainly.com/question/626479

#SPJ1

Answer:

Explanation:

1) in order to convert from pounds to newtons we first must convert pounds to kilograms using the conversion factor 1 kg = 2.2 lb

2) then we can use the formula fore force F = M * G where F is force in Newtons M is Mass in kg and G is the acceleration of earths gravity (9.8m/s/s).

Ex) lets say we have 5 lb. Fore every 2.2 lb we have 1 kg so we divide

5 lb by 2.2 lbs an get that 5 lb = 2.5 kg. now we plug this into the our force equation and get F = 2.5 * 9.8

F = 24.5 Newtons

Gravitational attraction is the driving force for the following processes:

b) Formation of moons - The gravitational force between a planet and its moon(s) is what keeps the moon(s) in orbit around the planet.

d) Formation of stars - The gravitational force between gas and dust particles in a molecular cloud can cause them to collapse and form a protostar, which can then develop into a star.

e) Formation of planets - After a protostar form, the leftover gas and dust in the protoplanetary disk can be drawn together by gravitational attraction to form planets.

f) Formation of nebulae - Gravity can cause a region of interstellar gas and dust to collapse and form a dense cloud, which can then develop into a nebula.

Gravity is a fundamental force of nature that causes all objects with mass or energy to attract one another. It is described by Isaac Newton's law of universal gravitation, which states that the gravitational force between two objects is directly proportional to their masses and inversely proportional to the distance between them squared.

Gravity is a ubiquitous force that affects all aspects of the universe, from the motion of planets and stars to the behavior of subatomic particles. It is the force that keeps us grounded on Earth and determines the structure and evolution of the cosmos.

In the 20th century, Einstein's theory of general relativity provided a new understanding of gravity as a curvature of space-time caused by the presence of mass and energy. This theory has been confirmed by numerous experiments and observations, and it is now the accepted framework for understanding gravity at the largest scales.

To learn more about Gravitational visit here:

brainly.com/question/3009841

#SPJ4

The impulsive force of the car will be 4,333. Kg.m/s.

In physics, the term "impulse" is used to characterize or measure the impact of force operating gradually to alter an object's motion. It is often stated in Newton seconds or kilograms per second and is denoted by the symbol J.

given, A car with a mass of 1200kg, went from 20 km/hr to 7 km/hr.

From the general formula of impulse:

Impulsive force j = mass( initial velocity - final velocity)

In our case,

initial velocity = 20 Km/hr

Final velocity = 7 Km/hr

mass = 1200 Kg

So,

Impulsive force = 1200( 20 - 7)

impulsive force = 15600 Kg. km/hr

Since 1 km/ hr = 5/18 m/s

impulsive force = 15600 * 5 /18 Kg.m/s

impulsive force = 4,333.33  Kg.m/s

Therefore, the impulsive force of the car will be 4,333. Kg.m/s.

Learn more about impulse here:

https://brainly.com/question/16980676

#SPJ1

The requried thermal energy produced when it hits the ground is absorbed by the sphere given by the expression Q = 0.63 * E.

Thermal energy is the energy that comes from the internal temperature of an object or substance. It is a form of kinetic energy that is related to the motion and vibration of molecules and atoms within a material.

Here,
To solve this problem, we need to know the specific heat capacity of the sphere and its mass. Without this information, we cannot calculate the temperature increase.

Assuming that we have the specific heat capacity and mass of the sphere, we can use the formula:

ΔT = Q / (m * c)

where ΔT is the temperature increase, Q is the thermal energy absorbed by the sphere, m is the mass of the sphere, and c is the specific heat capacity of the sphere.

Since 63% of the thermal energy produced when it hits the ground is absorbed by the sphere, we can write:

Q = 0.63 * E

where E is the thermal energy produced when it hits the ground.

Thus, the requried thermal energy produced when it hits the ground is absorbed by the sphere is given by the expression Q = 0.63 * E.

Learn more about thermal energy  here:

https://brainly.com/question/18989562

#SPJ1

The two objects will you select to hang on the hook are  a key ring, a small metal ring, and a plastic toy with a hole,

To set up this experiment, you will need to select two nonbreakable objects with holes that can be hung on the hook. Some possible options include a key ring, a small metal ring, a plastic toy with a hole, or a small plastic container with a hole.

Here is an example of how you could set up the experiment:
1. Make a small hole in the cardboard, ½ inch from one edge and centered.
2. Pull the string or thread through the hole in the cardboard, and tie the ends together to form a loop.
3. Slide a large paperclip onto the string, and bend one end out slightly to act as a hook.
4. Place a nonbreakable object, such as a kitchen utensil, on the cardboard.
5. Select two nonbreakable objects with holes that can be hung on the hook. In this example, we will use a key ring and a small metal ring.
6. Hang the key ring on the hook, and observe how the cardboard and string behave.
7. Remove the key ring, and hang the small metal ring on the hook. Observe how the cardboard and string behave.

By comparing the behavior of the cardboard and string with the different objects, you can learn about the effects of weight and balance on the system. Remember to be careful when selecting objects to hang on the hook, as you want to avoid anything that could break or cause injury.

Learn more about hook at:

https://brainly.com/question/13592582

#SPJ11

The wall, floor, and countertop outlets, as well as the outlet for refrigeration equipment, must be served by the two or more 20A, 120V small-appliance branch circuits  that serve the kitchen, dining room, and other comparable rooms.

For the supply of receptacle outlets in the kitchen, pantry, dining room, and breakfast area, a minimum of three 20-amp small appliance branch circuits must be constructed.

The kitchen and other rooms connected to it, such as pantries, breakfast rooms, and dining rooms, must have two or more 20-ampere small-appliance branch circuits for every outlet.

To know more about circuits visit:-

brainly.com/question/27206933

#SPJ1

Potential energy is held in a swing when it is pulled to one side, and when it is released, it transforms into kinetic energy. The topmost position of it has the highest potential energy, whereas the bottommost position, where the kinetic energy is highest, has the lowest potential energy.

The swing's bottom, where gravity's potential energy is at its lowest, has the most kinetic energy. The pendulum keeps swinging upward while slowing down and losing kinetic energy as well as potential energy from gravity.

Some of the swing's potential energy transforms into kinetic energy as it descends. The swing's kinetic energy is at its highest since it is going at its fastest speed while it is at its lowest point.

When bob has the greatest displacement relative to its mean position in a basic pendulum, that is an extreme position. The potential energy of the bob is at its highest point and the kinetic energy is at its lowest point in this position. Acceleration and velocity are both zero when in an extreme posture.

To know more about the kinetic energy visit;

https://brainly.com/question/25959744

#SPJ1

The airplanes have the same effective cross sectional area and drag coefficient. Then, the ratio of drag force at the two densities is 2.3.

The drag force is an air resistance which resist the motion of objects passing through air. It is related to the density ρ, drag coefficient C, velocity v and area A as follows:

D = 1/2 ρCAv².

Here, C and A are the same then the ratio of the drag forces D1 and D2 at the two densities is:

D1/D2 = ρ1 v1²/ρ2 v2²

ρ1  = 0.38 kg/m³

ρ2 = 0.67 kg/m³

v1 = 1000 km/h

v2 = 500 km/h

Then the ratios of drag force is ;

D1/D2 =  0.38 kg/m³ × 1000 km/h / (0.67 kg/m³ × 500 km/h)

          = 2.3

Therefore, the ratio of drag force at the two densities is 2.3.

Find more on drag force:

https://brainly.com/question/12774964

#SPJ1

The mass of the box is approximately 0.48 kg which can be calculated by using work-energy principle if work is given.

To solve this problem, we can use the work-energy principle, which states that the work done on an object is equal to the change in its kinetic energy.

In this case, the forklift raises the box a height of 1.2 m, so the change in potential energy of the box is given by:

ΔPE = mgh

where m : mass of the box, g : acceleration due to gravity (9.8 m/s²), and h : height to which the box is raised (1.2 m).

Work done:

W = 7.0 kJ

Use work energy principle:

W = ΔPE

7.0 kJ = mgh

Put values:

m = [tex]7.0 kJ / (g * h) = 7.0 kJ / (9.8 m/s^{2} * 1.2 m) = 0.48 kg[/tex]

Therefore, the mass of the box is approximately 0.48 kg.

Learn more about work here:

https://brainly.com/question/16976412

#SPJ4

Centric forces tend to promote linear or straight-line movement, while eccentric forces tend to promote rotational or angular movement.

Centric and eccentric forces are terms used in the context of muscle movement and contraction. Centric forces refer to forces that act along the longitudinal axis of a bone, causing linear motion of the bone. These forces are typically produced by the contraction of muscles that cross the joint perpendicular to its axis. An example of a centric force would be the contraction of the biceps muscle to lift a weight. Eccentric forces, on the other hand, refer to forces that act on a bone in a direction perpendicular to its longitudinal axis, causing rotational or angular motion of the bone.

To know more about Centric forces, here

brainly.com/question/14089595

#SPJ4

Electrical devices that produce arcs when installed in volatile environments are sealed in special enclosures to prevent explosions.

Electrical devices that produce arcs, such as switches, relays, and circuit breakers, generate a high amount of heat and electromagnetic energy. When installed in volatile environments, such as areas with flammable gases or liquids, the arcs generated by these devices can ignite the surrounding environment, leading to fires or explosions. To prevent this from happening, these devices are sealed in special enclosures that prevent the release of sparks or hot gases into the environment. These enclosures are designed to contain any potential explosions or fires within the enclosure, protecting the surrounding area from any harm.

To know more about Electrical devices, here

brainly.com/question/2538188

#SPJ4

The Correct answer is Option (D) 1,670 kilometers per hour.  Because,  the Earth's equatorial circumference is approximately 40,075 kilometers, and it takes 24 hours to complete one full rotation.

The subsolar point is the point on the Earth's surface where the sun is directly overhead at a given moment. This point moves along the equator due to the rotation of the Earth. In order to stay beneath the subsolar point as it moves along the equator, one would need to travel at the same speed as the Earth's rotation. Therefore, the speed of the Earth's rotation at the equator is:

40,075 km / 24 h = 1,670 km/h

Hence correct option is : D.

To know more about Subsolar point, here

brainly.com/question/28661831

#SPJ4

1) The wavelength at which the Sun's spectrum peaks is approximately 5.02 x 10^-7 m, and the frequency at which it peaks is approximately 5.99 x 10^14 H

2) The color corresponding to this wavelength is yellow-green

3) The energy flux of the Sun is much higher than that of a red dwarf of the same size, by a factor of approximately 1.9 x 10^4.

To determine the wavelength and frequency at which the Sun's spectrum peaks, we can use Wien's displacement law which states that the peak wavelength of blackbody radiation is inversely proportional to the temperature of the object. Mathematically,

λ_max = b/T

where λ_max is the peak wavelength, T is the temperature of the object, and b is Wien's displacement constant, which is equal to approximately 2.898 x 10^-3 m*K.

Substituting T = 5780 K and b = 2.898 x 10^-3 m*K, we get:

λ_max = (2.898 x 10^-3 m*K) / (5780 K) = 5.02 x 10^-7 m

Therefore, the wavelength at which the Sun's spectrum peaks is approximately 5.02 x 10^-7 m.

We can also use the relationship between wavelength and frequency of electromagnetic radiation:

c = λf

where c is the speed of light (3 x 10^8 m/s), λ is the wavelength, and f is the frequency.

Rearranging the equation to solve for f, we get:

f = c/λ = (3 x 10^8 m/s) / (5.02 x 10^-7 m) = 5.99 x 10^14 Hz

2) The color corresponding to this wavelength is yellow-green, which is in the middle of the visible spectrum.

3) The energy flux of a star is proportional to its surface temperature to the fourth power (Stefan-Boltzmann law), so the energy flux of the Sun can be calculated as:

E_Sun = σT^4A

where σ is the Stefan-Boltzmann constant (5.67 x 10^-8 W/m^2 K^4), T is the temperature of the Sun (5780 K), and A is the surface area of the Sun. Assuming the Sun has a radius of approximately 696,340 km, we get:

A_Sun = 4π(696,340 km)^2 = 6.09 x 10^18 m^2

Substituting these values, we get:

E_Sun = (5.67 x 10^-8 W/m^2 K^4) x (5780 K)^4 x (6.09 x 10^18 m^2) = 3.85 x 10^26 W

Now, let's compare this to the energy flux of a red dwarf with a temperature of 2000 K. Using the same equation, we get:

E_red dwarf = (5.67 x 10^-8 W/m^2 K^4) x (2000 K)^4 x (6.09 x 10^18 m^2) = 2.03 x 10^22 W

Learn more about frequency here

brainly.com/question/1292129

#SPJ4

Formula mass is found by summing the atomic masses of all the atoms in a chemical formula, while molar mass is the mass of one mole of a substance expressed in grams per mole.

Formula mass and molar mass are both measures of the mass of a substance. The formula mass is the sum of the atomic masses of all the atoms in a chemical formula, including any coefficients used to balance the formula. On the other hand, the molar mass is the mass of one mole of a substance and is equal to the formula mass expressed in grams per mole (g/mol).

To find the formula mass or molar mass, you need to look up the atomic masses of the elements in the chemical formula on the periodic table, multiply them by the number of atoms of each element in the formula, and then sum the results. The resulting number is the formula mass or molar mass.

To know more about the molar mass, here

brainly.com/question/12127540

#SPJ4

On average, the parachute with the lightest material will fall more slowly, whereas the parachute with the heaviest material will fall more quickly.

The material determines how the parachute descends, hence it is crucial that it is lightweight, flexible, and windproof. It must be able to withstand winds at high altitudes and other environmental factors. More time is required to descend with lighter materials, while less time is required to descend with heavier materials. This is the main reason why the material is essentially chosen to be lighter or less heavy.

To know more about parachute, visit,

https://brainly.com/question/499768

#SPJ4

Answer:

B

Explanation:

The learned behavior would have been shaped by the environment therefore C is your answer.

The statement is true. As a huge rotating cloud of particles in space gravitate together forming an increasingly dense ball, it shrinks in size.

True.

As a cloud of particles in space gravitate together, the gravitational potential energy of the system is converted into kinetic energy, causing the cloud to heat up and the particles to move faster. This heat and motion counteract the force of gravity, which tends to pull the particles together. As the cloud continues to shrink in size, it becomes denser and hotter until it eventually becomes a protostar. The shrinking of the cloud is due to the force of gravity overpowering the kinetic energy of the particles, causing them to collapse towards the center of mass. This process is known as gravitational collapse.

for such more question on gravity

https://brainly.com/question/940770

#SPJ4

Answer:

D

Explanation:

As the wavelength of a wave gets shorter, its frequency increases, while its energy increases. This relationship is described by the equation E = hf, where E is the energy, h is Planck's constant and f is the frequency of the wave.

"Mass is conserved in a reaction if the sum of the initial reactant masses equals the sum of the masses of products."

According to the principle of mass conservation, neither chemical reactions nor physical changes can produce or destroy mass in an isolated system. The mass of the products and reactants in a chemical reaction must be equal, in accordance with the rule of conservation of mass.

Reactants are the substances that participate in a chemical process. The process by which atoms, the fundamental components of matter, rearrange themselves to form novel mixtures is known as a chemical reaction. When raw materials combine, they are referred to as reactants.

Initial elements are referred to as reactants on the left side of the equation. The products, which stand for the outcome of the reaction, are enumerated on the right-hand side of the equation.

To know more about reactant:

https://brainly.com/question/17096236

#SPJ4

Pounds (lbs) is not a force but a unit of weight.

The pound (lb) is a unit of weight commonly used in the United States and other countries. Weight is a measure of the force exerted on an object due to gravity, and the pound is defined as the force exerted by gravity on an object with a mass of one pound at sea level on Earth.

This means that the pound is a unit of force, but specifically, it is a force that is equal to the weight of one pound of mass. Therefore, when we use the unit "pounds" (lbs), we are referring to weight, not force, and we are measuring the gravitational force exerted on an object due to its mass.

To know more about the lbs, here

brainly.com/question/19866561

#SPJ4

--The complete question is, what is lbs, a force or unit of weight?--

The statement saying that when wax freezes it absorbs energy is false.

When the wax freezes utilizes energy into the surrounding because it is an exothermic process.

As the particles present in the wax settles and entropy of the system of the wax decreases they tend to lose energy and attained the state in which they will have the least potential energy.

In the process of the freezing of wax both these things take place and it results in the energy being released. So, the statement saying that energy is absorbed during the freezing of wax is false.

To know more about energy absorption, visit,

https://brainly.com/question/29602575

#SPJ4

An ocular micrometer is a measuring tool used in microscopy to measure the size of objects under a microscope. Calibration is the process of ensuring that the ocular micrometer is accurate and giving the correct measurements.

What is ocular micrometer?

An ocular micrometer, also known as an eyepiece graticule, is a measuring tool used in microscopy to measure the size of objects viewed through a microscope. It consists of a small, transparent ruler that is placed in the eyepiece of a microscope.

The ruler is etched with fine lines that are used to measure the size of microscopic objects. These lines can be either simple or complex and are usually calibrated to a specific scale, such as millimeters or micrometers. When the microscope is focused on the object, the lines on the ocular micrometer are superimposed onto the image of the object.

An ocular micrometer is a measuring tool used in microscopy to measure the size of objects under a microscope. Calibration is the process of ensuring that the ocular micrometer is accurate and giving the correct measurements.

The frequency of calibration for an ocular micrometer depends on various factors, such as the type and quality of the micrometer, the frequency of use, and the environment in which it is used. However, as a general rule, it is recommended that an ocular micrometer should be calibrated at least once a year.

If the micrometer is used frequently or subjected to harsh environments, it may need to be calibrated more frequently. Additionally, if the micrometer is dropped or damaged, it should be recalibrated before use.

It is important to follow the manufacturer's recommendations and guidelines for the specific type of ocular micrometer being used to ensure accurate measurements.

Learn more ocular micrometer about  click here:

https://brainly.com/question/4679171

#SPJ1

"Accretion disc formation" is the process by which a spinning nebula clump transforms into a flat, revolving disc as a result of several physical forces.

The conservation of angular momentum is a crucial element. Due to the conservation of angular momentum, the nebula clump begins to spin more quickly as it falls apart under the influence of gravity. The clump's overall rotation gets more structured as the material within it rotates more quickly as it approaches the centre of mass.

The impact of magnetic fields is another significant aspect. The magnetic fields within the clump strengthen and organise as it breaks apart. By helping to transfer angular momentum away from the falling material, these magnetic fields can aid the material continue to collapse.

To learn more about Accretion disc  :

https://brainly.com/question/1900229

#SPJ4

The dose equivalent limits for radiation workers are based on the radiation received from the two external and internal sources of radiation.

The dose equivalent limits for radiation workers are established by different national and international regulatory agencies, such as the International Commission on Radiological Protection and the U.S. Nuclear Regulatory Commission.

The limits are outlined to minimize the risk of radiation-induced health effects, such as cancer, while allowing for necessary exposure in various situations, such as in medical treatments or in nuclear power plants.

External sources of radiation contain radiation that comes from outside the body, such as from gamma rays or x-rays.

Internal sources of radiation, on the other hand, come from radioactive materials that are taken into the body through ingestion or inhalation.

To know more about radiation:

https://brainly.com/question/13934832

#SPJ4

The bright star that will be straight overhead at midnight on june 20 will be Vega.

option D.

To determine the answer to this question using a star wheel, you will need to know your latitude and the local time of the observation. Assuming you are located in the northern hemisphere and at a latitude of about 40 degrees, and that the local time is set to midnight on June 20, the star that will be straight overhead will be Vega.

To use a star wheel, first set the date to June 20 and align the wheel with your local time (midnight in this case). Next, find the altitude (height above the horizon) of the stars located at the center of the wheel (i.e. the stars that are closest to the center point).

The star with the highest altitude will be the one closest to being straight overhead. In this case, Vega will be the brightest star closest to the center point, so it will be the one closest to being straight overhead at midnight on June 20.

Learn more about star wheel here: https://brainly.com/question/29312344

#SPJ1

The complete question is below:

What bright star will be straight overhead at midnight on June 20? (Using your star wheel)

A) Sirius

B) Arcturus

C) Capella

D) Vega