When J. J. Thomson discovered the electron, what physical property of the electron didhe measure?A) its charge, e D) its mass, mB) its charge-to-mass ratio, e/m E) its atomic number, ZC) its temperature, T

The correct answer is E) zero. Since the voltage is sinusoidal and the capacitor is independent of frequency, the capacitor will act as an open circuit to the AC signal.

This means that no current will flow through the capacitor and therefore no power will be dissipated. The formula for power dissipation in a capacitor is [tex]P = V^2 / XC[/tex], where V is the voltage, XC is the capacitive reactance (which is inversely proportional to frequency), and C is the capacitance. Since the capacitor is independent of frequency, XC is infinite, making the power dissipation zero. Therefore, the answer is E) zero.

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It takes approximately 2.734 seconds for the object to come to rest as it travels up the ramp if speed at surface level is 30km/h.

we'll first need to determine the component of acceleration acting against the object's motion as it travels up the ramp.

Then, we'll use that information to calculate the time it takes for the object to come to rest.

Step 1: Calculate the acceleration due to gravity acting parallel to the rampThe acceleration due to gravity (g) is 9.81 m/s^2. To find the component of gravity acting along the ramp, we'll use the formula:a_parallel = g * sin(angle)where angle is 30 degrees. First, convert 30 degrees to radians:angle (in radians) = (30 * π) / 180 ≈ 0.524 radians

Now, find the parallel acceleration:

a(parallel) = 9.81 * sin(0.524) ≈ 4.905 m/s^2

Step 2: Convert the object's initial speed to meters per secondThe object is initially traveling at 30 mph.

To convert this to meters per second (m/s), use the conversion factor 1 mph ≈ 0.44704 m/s:

initial speed (in m/s) = 30 * 0.44704 ≈ 13.411 m/s

Step 3: Calculate the time it takes for the object to come to rest

Now we'll use the formula:

final speed = initial speed + (acceleration * time)Since the object comes to rest, its final speed is 0 m/s. We can now solve for time:0 = 13.411 - (4.905 * time)time ≈ 2.734 seconds

So, it takes approximately 2.734 seconds for the object to come to rest as it travels up the ramp.

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A)  The speed of the radar waves = 3 x 10^8 m/s

B)  The distance between the aircraft and the target is 27 km.

C) It takes 100 seconds for the aircraft to be vertically above the target.

(a) The speed of the radar waves can be found using the formula:

speed of light = frequency x wavelength

Since radar waves are a type of electromagnetic waves and travel at the speed of light, we can use the above formula to find the speed of the radar waves:

speed of radar waves = speed of light = 3 x 10^8 m/s

(b) To find the distance AT between the aircraft and the target, we can use the formula:

distance = (speed x time) / 2

where speed is the speed of the radar waves (which we found to be 3 x 10^8 m/s), and time is the time taken for the radar waves to travel to the target and back (which is twice the time it took for the echo to be detected on the aircraft).

time taken for radar waves to travel to target and back = 2 x 90 us = 180 us = 1.8 x 10^-4 s

So, the distance between the aircraft and the target can be calculated as:

distance AT = (speed of radar waves x time taken for radar waves to travel to target and back) / 2

= (3 x 10^8 m/s x 1.8 x 10^-4 s) / 2

= 27 km

Therefore, the distance between the aircraft and the target is 27 km.

(c) To find the time which elapses before A is vertically above T, we can use the formula:

time = distance / speed

where distance is the horizontal distance between the aircraft and the target (which we found to be 27 km), and speed is the speed of the aircraft (which we were not given, but we can assume is constant).

Since the aircraft is flying at a constant speed, the time it takes to travel the horizontal distance between the aircraft and the target is the same as the time it takes for the aircraft to be vertically above the target. Therefore, the time which elapses before A is vertically above T is:

time = distance / speed

= 27 km / (270 m/s)

= 100 s

Therefore, it takes 100 seconds for the aircraft to be vertically above the target.

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The distance of the bicycle that traveled during the 5.0 seconds of braking is 2.98 m (there is no a correct option)

To determine how far the bicycle traveled during the 5.0 seconds of braking, we need to use the formula:

distance = initial velocity x time + 1/2 x acceleration x time²

Since the bicycle is braking, its initial velocity is its speed before braking, which we don't know. However, we know that the bicycle comes to a stop after 5 seconds of braking, so its final velocity is 0 m/s. We also know that the acceleration due to braking is -3.5 m/s².

Therefore, we can rearrange the formula to solve for distance:

distance = (final velocity - initial velocity) x time / 2 x acceleration

distance = (0 m/s - initial velocity) x 5 s / 2 x (-3.5 m/s²)

distance = (initial velocity) x 5 s / 7 m/s²

Now we need to estimate the initial velocity of the bicycle before braking. Assuming a typical bicycle traveling at a moderate speed of 15 km/h (4.17 m/s), it would take about 5-6 seconds to come to a complete stop under braking. Therefore, we can estimate that the initial velocity of the bicycle was around 4.17 m/s.

Plugging this value into the formula, we get:

distance = 4.17 m/s x 5 s / 7 m/s²

distance = 2.98 m

Therefore, the bicycle traveled during the 5.0 seconds of braking is 2.98 m.

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To find the correction factor for a situation where four or more current carrying conductors are bundled together, consult Table 310.15(B)(3)(a) in the National Electrical Code (NEC).

This table provides adjustment factors for ambient temperature, conductor size, and number of conductors in a raceway or cable. The correction factor is used to adjust the ampacity of the conductors to account for the increased heat generated by the bundled conductors.

 To find the correction factor for a situation where four or more current-carrying conductors are bundled together, consult Table 310.15(B)(3)(a).

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Regarding ozone, option D: all statements are correct as it is a faster disinfectant than Chlorine, more expensive and also its residuals can last more than several hours.

In the upper stratosphere of the atmosphere, UV rays split oxygen into separate oxygen or nascent oxygen. Other oxygen molecules combine with these nascent oxygen atoms to form ozone. Ozone forms a protective layer of earth that protects us from harmful UV radiations. Hence, it is necessary to maintain the ozone layer. The reaction occurs as follows:

O₂ + UV rays → 2O

O₂ + O → O₃

Ozone layer is thermodynamically unstable and hence decomposes to molecular oxygen. CFCs or freons, non-organic molecules are known responsible for its depletion. It is obviously more expensive and a better disinfectant than chlorine.

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The total internal energy of an ideal gas, monoatomic or diatomic, is a measure of the energy contained within the gas due to its molecular motion.

For a monoatomic ideal gas, the internal energy is proportional to the temperature of the gas and is given by the equation

U = (3/2) nRT

where U is the internal energy, n is the number of moles of gas, R is the gas constant, and T is the temperature in Kelvin.

This equation reflects the fact that each molecule of a monoatomic ideal gas has three degrees of freedom for translational motion, and thus contributes (1/2)kT to the internal energy of the gas, where k is Boltzmann's constant.

For a diatomic ideal gas, the internal energy is slightly more complex due to the additional degrees of freedom associated with molecular rotation. At low temperatures, the diatomic molecules cannot rotate and the internal energy is given by U = (5/2) nRT, which includes the three degrees of freedom for translational motion and two degrees of freedom for vibration.

At higher temperatures, the diatomic molecules can rotate and the internal energy is given by U = (7/2) nRT, which includes the additional two degrees of freedom for rotation.

For a non-linear ideal gas, the internal energy depends on the specific molecular structure and the number of degrees of freedom associated with molecular motion. In general, the internal energy is given by

U = (f/2) nRT

where f is the total number of degrees of freedom for motion.

For example, a triatomic gas molecule has six degrees of freedom: three for translational motion, two for vibration, and one for rotation about a specific axis.

Therefore, its internal energy would be

U = (6/2) nRT = 3nRT.

In conclusion, the total internal energy of an ideal gas depends on its molecular structure and the number of degrees of freedom for molecular motion, with monoatomic, diatomic, and non-linear gases each having a distinct formula for their internal energy.

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The concrete will seem much warmer because of how it holds and radiates heat when the female has one foot in the grass and one foot on it. The reason for this is difference in specific heat.

The concrete will seem much warmer because of how it holds and radiates heat when the female has one foot in the grass and one foot on it. Concrete absorbs heat more rapidly and easily than grass because it is porous and a good conductor of heat. Grass will stay cooler because it has a higher insulation value, which traps heat and prevents it from transferring as quickly. The dense, paved surfaces like concrete and asphalt absorb more heat from the sun than natural surfaces like grass or dirt, leading to the phenomenon known as the urban heat island effect. As a result, on a hot summer day, the concrete will seem much warmer than the grass.

Also known as specific heat, this is the quantity of energy required to increase a substance's temperature by one degree Celsius in one gram. The units of specific heat are typically calories or joules per gram per degree Celsius. As an illustration, the specific heat of water is 1 calorie (4.186 joules) per gram per degree Celsius. Joseph Black, a Scottish scientist, discovered that equivalent masses of various substances required different amounts of heat to elevate them over the same temperature range, which led him to establish the concept of specific heat.

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The object must have a neutral net charge. It attracts neutral pieces of paper because of electrostatic forces, but it repels a negatively charged balloon because of the principle of electric charge. If the object had a positive net charge, it would attract the negatively charged balloon, not repel it.

The only possibility is that the object has a neutral net charge. Based on your question, the net charge on the object is positive. The object attracts neutral pieces of paper. When an object is charged, it can induce a temporary charge on a neutral object like the pieces of paper and attract it. The object repels a negatively charged balloon. According to Coulomb's Law, like charges repel each other. Since the negatively charged balloon is repelled, the object must have a negative charge too. Considering both observations, the object has a net positive charge because it attracts neutral objects and repels negatively charged ones.

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The induced current flows clockwise in the loop of wire. When a bar magnet is held stationary above a circular loop of wire with its north pole pointing downward, as viewed from above, the induced current in the loop of wire will flow counter clockwise.

This is due to Lenz's law, which states that the direction of the induced current flows clockwise in the loop of wire. current will be such that it opposes the change in magnetic flux that is producing it. In this case, the counterclockwise current creates a magnetic field opposing the downward magnetic field of the north pole of the bar magnet. the direction of the magnetic field will be down in the plane at the center. The magnetic field produced by a current-carrying wire loop will be in a single direction at the center. The direction of magnetic field at the center of a current-carrying circular loop is perpendicular to the plane of the loop.

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The siting of nuclear facilities is subject to extensive regulation and licensing by the c. Nuclear Regulatory Commission.

The siting of nuclear facilities is subject to extensive regulation and licensing by the Nuclear Regulatory Commission to ensure the safety and protection of the public and the environment from potential nuclear hazards. The Nuclear Regulatory Commission regulates commercial nuclear power plants and other uses of nuclear material. The NRC licenses and regulates the Nation's civilian use of radioactive materials to protect public health and safety, promote common defense and security, and protect the environment.

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Therefore, the precession frequency of a 15n nucleus in a 1.50 T MRI machine is 6.45 MHz. The appropriate units are megahertz (MHz).

The precession frequency of a 15n nucleus can be calculated using the formula:
frequency = gyromagnetic ratio x magnetic field strength
In this case, the gyromagnetic ratio of a 15n nucleus is 10.1% that of a proton, so we can write:
gyromagnetic ratio = 0.101 x gyromagnetic ratio of a proton
The gyromagnetic ratio of a proton is approximately 42.58 MHz/T, so the gyromagnetic ratio of a 15n nucleus is:
gyromagnetic ratio = 0.101 x 42.58 MHz/T = 4.30 MHz/T
The magnetic field strength of a 1.50 T MRI machine is 1.50 T, so the precession frequency of a 15n nucleus in this machine is:
frequency = 4.30 MHz/T x 1.50 T = 6.45 MHz
Therefore, the precession frequency of a 15n nucleus in a 1.50 T MRI machine is 6.45 MHz. The appropriate units are megahertz (MHz).

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The ancient Greeks were some of the first to attempt to explain the motion of the planets. They believed that the planets, including the sun and the moon, revolved around the Earth. They also believed that the planets moved in circular orbits, which was known as the geocentric model. This theory was proposed by the famous astronomer Ptolemy in the 2nd century CE.

The ancient Greeks also believed that the motion of the planets was influenced by the gods and that their movements could predict future events. Although the geocentric model was eventually disproven by scientists such as Galileo and Copernicus, the work of the ancient Greeks laid the foundation for modern astronomy.

To account for the irregularities in the motion of the planets, the Greeks added epicycles, small circular orbits that were superimposed on the larger circular paths of the planets. By adjusting the size and speed of these epicycles, the Greeks were able to predict the positions of the planets with reasonable accuracy.

This geocentric model was widely accepted in ancient Greece and remained the dominant model of the universe for many centuries. However, it was eventually replaced by the heliocentric model proposed by Nicolaus Copernicus in the 16th century, which placed the Sun at the center of the universe and explained the motion of the planets in a simpler, more elegant way.

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The ancient Greeks attempted to explain the motion of the planets through a geocentric model, which held that the Earth was at the center of the universe and that the planets, the sun, and the stars revolved around it.

This model was first proposed by the philosopher Aristotle in the 4th century BCE, and was later elaborated by the astronomer Ptolemy in the 2nd century CE.

According to the geocentric model, each planet moved in a perfect circle, called an epicycle, around a point called a deferent, which itself moved in a circle around the Earth.

The speed of the planet was not constant, but varied as it moved around its epicycle.

The geocentric model was consistent with observations of the motions of the planets and stars, and was widely accepted in the ancient world.

However, it had some inconsistencies and could not account for all observations accurately.

In the 16th century, the Polish astronomer Nicolaus Copernicus proposed a heliocentric model, which held that the Sun, not the Earth, was at the center of the universe, and the planets revolved around it.

This model provided a more accurate explanation of the motions of the planets, and eventually became widely accepted.

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The angular speed of a rotating fan blade at various times as it slows to a stop. Time (s) Angular speed (rad/s)

0 5. 0

2. 0 4. 1

4. 0 3. 0

Part A. The average angular acceleration for the times t=0 to t=2.0s is  -0.45 rad/[tex]s^{2}[/tex].

Part B. The average angular acceleration for the times t=0 to t=4.0s is -0.5 rad/[tex]s^{2}[/tex].

Part C. The average angular acceleration for the times t=2.0s to t=4.0s is -0.55 rad/[tex]s^{2}[/tex].

Part A

The change in angular speed during the first 2.0 seconds is

Δω = ωf - ωi = 4.1 rad/s - 5.0 rad/s = -0.9 rad/s

The average angular acceleration during this time interval is

α = Δω / Δt = (-0.9 rad/s) / (2.0 s) = -0.45 rad/[tex]s^{2}[/tex]

Therefore, the average angular acceleration for the times t=0 to t=2.0s is  -0.45 rad/[tex]s^{2}[/tex].

Part B

The change in angular speed during the first 4.0 seconds is

Δω = ωf - ωi = 3.0 rad/s - 5.0 rad/s = -2.0 rad/s

The average angular acceleration during this time interval is

α = Δω / Δt = (-2.0 rad/s) / (4.0 s) = -0.5 rad/[tex]s^{2}[/tex]

Therefore, the average angular acceleration for the times t=0 to t=4.0s is -0.5 rad/[tex]s^{2}[/tex].

Part C

The change in angular speed during the time interval t=2.0s to t=4.0s is

Δω = ωf - ωi = 3.0 rad/s - 4.1 rad/s = -1.1 rad/s

The average angular acceleration during this time interval is

α = Δω / Δt = (-1.1 rad/s) / (2.0 s) = -0.55 rad/[tex]s^{2}[/tex]

Therefore, the average angular acceleration for the times t=2.0s to t=4.0s is -0.55 rad/[tex]s^{2}[/tex].

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The time rate of change of the electric field between the plates of the parallel-plate capacitor in air is 8.20 x 10^7 N/C/s.

A parallel-plate capacitor with circular plates of radius 2.9 cm and a separation of 1.1 mm has charge flowing onto the upper plate and off the lower plate at a rate of 6 A.

To find the time rate of change of the electric field between the plates, we can use the formula:

dE/dt = (dQ/dt) / (ε₀ * A)

Where dE/dt is the time rate of change of the electric field, dQ/dt is the rate of charge flow (6 A), ε₀ is the vacuum permittivity (8.85 × 10⁻¹² F/m), and A is the area of the circular plates.

First, calculate the area of the circular plates:

To find the time rate of change of the electric field between the plates of the parallel-plate capacitor in air, we can use the formula:

dE/dt = (I/Aε0)

Where dE/dt is the time rate of change of the electric field, I is the current flowing onto the upper plate and off the lower plate (which is given as 6 A), A is the area of the plates (which is πr^2, where r is the radius of the plates), and ε0 is the permittivity of free space (which is a constant value of 8.85 x 10^-12 C^2/Nm^2).

Substituting the given values, we get:

dE/dt = (6/(π(0.029)^2)(8.85 x 10^-12)

Simplifying this expression, we get:

dE/dt = 8.20 x 10^7 N/C/s

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To find the third force that will cause the object to be in equilibrium, we need to calculate the net force acting on the object. Net force is the sum of all the forces acting on the object. In this case, we have two forces, F1 = 78 N upward and F2 = 26 N downward. To calculate the net force, we subtract the smaller force from the larger force. So, in this case, the net force is 78 N - 26 N = 52 N upward.

Therefore, to keep the object in equilibrium, we need a third force that is equal in magnitude but opposite in direction to the net force. That means we need a force of 52 N pointing downward. Any other force that is equal in magnitude but in the opposite direction would also work. For example, a force of 82 N pointing upward would also keep the object in equilibrium.
It's important to note that in order for the object to be in equilibrium, the net force acting on it must be zero. This means that the sum of all the forces acting on the object must be equal to zero. In this case, we have two forces with opposite directions, so they cancel each other out, resulting in a net force of zero.

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52 N pointing downward third force will cause the object to be in equilibrium.

In order for an object to be in equilibrium, the net force acting on it must be zero. This means that the sum of all the forces acting on the object must be equal to zero. In this case, we have two forces acting on the object, F1 = 78 N upward and F2 = 26 N downward.

To find the third force that will cause the object to be in equilibrium, we need to find a force that will balance out the two existing forces. Since F1 is pointing upward and F2 is pointing downward, we know that the third force must also be pointing upward.
To balance out the two forces, we need to find a force that is equal in magnitude to the sum of F1 and F2, but pointing in the opposite direction. The sum of F1 and F2 is 78 N - 26 N = 52 N upward. Therefore, the third force that will cause the object to be in equilibrium is 52 N pointing downward.
In summary, the answer is: 52 N pointing downward.

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According to Table 310-15(a)(16) of the National Electrical Code (NEC), the ampacity of No. 8 THHN conductors for a temperature of 50°F is 50 amperes.

However, the ampacity of the conductors depends on other factors as well, such as the length of the conductors, the type of insulation used, the number of conductors in the conduit, and the ambient temperature of the location where the conductors are installed. It is important to properly size the conductors based on all these factors to ensure safe and efficient operation of the electrical system.

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A protogalactic cloud refers to option A) a cloud of hydrogen and helium that contracts to become a galaxy.

It is an early stage in the formation of a galaxy where gas and dust come together under the influence of gravity, eventually leading to the development of a fully formed galaxy.A protogalactic cloud is a cloud of gas and dust that is in the process of collapsing to form a new galaxy. These clouds are typically composed of hydrogen, helium, and other elements, and contain the seeds of stars and planets that will form within the newly forming galaxy. Protogalactic clouds are believed to be the birthplace of galaxies and are thought to be the sites of the earliest star formation in the universe.

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To calculate the total force resisting the motor of the boat, we can use the equation. Total Force = 0.5 x Density of Water x Cross-Sectional Area of the Boat x Drag Coefficient x [tex]velocity^{2}[/tex] + Weight of the Boat Since we are given.

The boat is moving at a steady speed of 35 km/h, we need to convert this to meters per second. 35 km/h = 9.72 m/s We are also given that the motor is rated at 55 hp, but we don't need to use this information to calculate the total force. Now, we need to estimate some values for the other variables in the equation. The density of water is approximately 1000 kg/[tex]m^{2}[/tex], the cross-sectional area of the boat is not given, and the drag coefficient varies depending on the shape of the boat. Let's assume a cross-sectional area of 10 [tex]m^{2}[/tex]and a drag coefficient of 0.5 which is typical for a boat of this size and shape. Using these values, we can calculate the total force as Total Force = 0.5 x 1000 kg/[tex]m^{2}[/tex] x 10 [tex]m^{2}[/tex] x 0.5 x 9.72 m/[tex]s^{2}[/tex] + Weight of the Boat We don't know the weight of the boat, but we can still solve for the total force. Simplifying the equation gives Total Force = 1182.2 N/[tex]m^{2}[/tex] x Weight of the Boat So, the total force resisting the motion of the boat depends on the weight of the boat. If we had that information, we could use the equation above to calculate the total force.

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The wavelength of the radio wave with a frequency of 7.80×10⁷ Hz is 3.846 m.

The wavelength and frequency are inversely proportional to each other. The frequency of the wave gives the number of oscillations per unit of time.

The wavelength is defined as the distance between crests and troughs and the unit of wavelength is a meter.

From the given,

frequency (ν) = 7.80×10⁷ Hz

wavelength (λ) =?

frequency (ν) = c / λ, where c is the velocity of light and λ is the wavelength.

λ = c/ν

  = (3×10⁸ m/s) / (7.80×10⁷ Hz)

  = 3.846 m

Thus, the wavelength of the radio wave is 3.846m.

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Capacitance of capacitors depends on several factors. Here are 3 key requirements that influence capacitance: Surface Area , Distance between Plates , Dielectric Material.

1. Surface Area: Capacitance is directly proportional to the surface area of the capacitor's conductive plates. Larger surface areas allow for more charge to be stored, which increases the capacitance value.
2. Distance between Plates: Capacitance is inversely proportional to the distance between the capacitor's plates. As the distance between the plates decreases, the electric field strength between them increases, leading to a higher capacitance value.
3. Dielectric Material: Capacitance is also dependent on the dielectric material (insulator) placed between the plates. The dielectric constant of the material determines its ability to store electric charge, and a higher dielectric constant results in a higher capacitance value.

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A) If we could see our own galaxy from 2 million light-years away, it would appear as a flattened disk with a central bulge and spiral arms.

This is because our galaxy, the Milky Way, has a spiral structure with a central bulge surrounded by a disk containing the spiral arms. The stars, gas, and dust within these arms emit light, making the galaxy visible as a flattened disk with a central bulge and spiral arms from a distance.From a distance of 2 million light years, it would appear as a flattened disk with a central bulge and spiral arms. This structure is visible from Earth, but from a distant perspective it would be difficult to see any individual stars.

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It would take you 12.4 seconds to move the desk 5.1 m across the warehouse floor. we need to find the time it takes to move the desk across the warehouse floor. First, we'll find the acceleration of the desk, and then use the equation of motion to find the time.
To calculate the time it takes to move the desk 5.1 m across the warehouse floor, we need to use the formula:

time = distance / speed

First, we need to find the speed of the desk. Since the force applied to the desk is steady, we can use the formula:

force = mass x acceleration

to find the acceleration of the desk.

19 N = 46 kg x acceleration

acceleration = 0.413 m/s^2

Next, we can use the formula:

speed = acceleration x time

to find the speed of the desk.

speed = 0.413 m/s^2 x time

Finally, we can plug in the distance and solve for time:

time = distance / speed

time = 5.1 m / (0.413 m/s^2 x time)

time = 12.4 seconds

Therefore, it would take you 12.4 seconds to move the desk 5.1 m across the warehouse floor.

1. Find the acceleration:
F = ma, where F is the force applied, m is the mass of the desk, and a is the acceleration.
a = F/m = 19 N / 46 kg ≈ 0.413 m/s²

2. Use the equation of motion:
s = ut + 0.5at², where s is the distance covered, u is the initial velocity (0 m/s, as the desk is initially at rest), t is the time taken, and a is the acceleration found in step 1.

5.1 m = 0 + 0.5 * 0.413 m/s² * t²
10.2 m = 0.413 m/s² * t²
t² ≈ 24.71 s²
t ≈ √24.71 ≈ 4.97 s

So, it takes you approximately 4.97 seconds to move the desk 5.1 meters across the warehouse floor with a steady force of 19 N and casters fitted on the desk.

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The correct sequence is:

C) Lemaitre proposes his theory --> A) Hubble makes his discoveries --> B) Cosmic background radiation is first detected.

Lemaitre proposed his theory of the expanding universe, which later became known as the Big Bang theory, in the 1920s. Hubble's observations in the 1920s and 1930s provided evidence for the expansion of the universe and the relationship between distance and recession velocity for galaxies.

The cosmic microwave background radiation, which is the afterglow of the Big Bang, was first detected in 1964 by Arno Penzias and Robert Wilson.

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Answer:

The graph is A, and the others are as follows: 18m/s = V; 16m/s/s = A; 50cm/min = V; 8mi = D; 2m = D; 20s = T; 42s = T; 122min = T; 8m/s/s = A

Explanation:

The graph shows the y-value increasing, and since the y-value represents velocity, that means that the velocity is increasing, and since we know that the velocity is getting larger at a constant rate, shown by the straight line, we know that the car is also accelerationg, therfore making the answer A.

Distance/Time is equal to velocity, therefore all questions with a distance over a time are velocity. m stands for meters, and mi stands for miles, both of which are measures of distance. s stands for seconds, and min stands for minutes, both of which are measurements of time. Lastly, m/s/s is a form of identifying acceleration.

The correct answer is A) 146 p, 92 n, 92 e. This is because the atomic number of uranium (U) is 92, which means it has 92 protons in its nucleus.

The atomic mass of uranium is 238, which means it has a total of 238 particles in its nucleus. To find the number of neutrons, you subtract the atomic number (92) from the atomic mass (238), giving you 146 neutrons. Finally, because the atom is neutral (has no overall charge), it must have the same number of electrons as protons, so there are also 92 electrons in one atom of 238U.

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1. Hydrogen: With an atomic number of 1, hydrogen has the lowest number of protons in the nucleus.

Atomic number is an important property of an element and is used to classify elements. It refers to the number of protons in the nucleus of an atom of that element. Protons have a positive charge and the number of protons indicates the charge of an atom. The atomic number of an element is unique and constant, and it is always written as a subscript on the element symbol.

2. Helium: With an atomic number of 2, helium has the second lowest number of protons in the nucleus.
3. Carbon: With an atomic number of 6, carbon has the third lowest number of protons in the nucleus.
4. Oxygen: With an atomic number of 8, oxygen has the fourth lowest number of protons in the nucleus.
5. Iron: With an atomic number of 26, iron has the highest number of protons in the nucleus.

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When the moon first formed, it was only 14,000 miles above the Earth's surface outside the Roche limit.

The distance between two celestial bodies which are held together with the force of gravity between them, is called the Roche limit or Roche radius.

The order for our moon is that,

When the moon first formed, it was only 14,000 miles above the Earth's surface outside the Roche limit.

It took only to 100 years to form.

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The also recommended to consult a licensed electrician and comply with any local codes and regulations that may apply to the specific installation.

To determine the conductors required for a 250 ampere feeder that is paralleled in two raceways, we need to consult the [tex]NEC[/tex] (National Electrical Code) Table 310.16, which provides ampacity values for various types and sizes of conductors.

Assuming the raceways are located in the same area and under the same conditions, we can parallel the conductors in accordance with the [tex]NEC 310.10(H)(1)[/tex] requirements.

This means that each parallel conductor must have the same length, be the same size, and be made of the same material.

Based on [tex]NEC[/tex] Table 250.122, we can use two parallel sets of 4/0 AWG conductors, which have an ampacity of 230 amps each.

Therefore, two sets of 4/0 AWG conductors in parallel would provide a total ampacity of 460 amps, which is well above the required 250 ampere feeder size.

It is important to note that this answer assumes that the installation complies with all other applicable [tex]NEC[/tex] requirements, such as those related to raceway fill, grounding, and overcurrent protection.

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