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Suppose that a block is pulled at a constant velocity with a constant force in the presence of sliding friction. Answer the questions carefully.
(a) What is the net force on the block while it is moving at a constant velocity from point a to point b? Explain how you arrived at your answer.
(b) What is the net work done on the block while it is moving from point a to point b? Explain how you arrived at your answer.
(c) What is the change in the kinetic energy of the block as it moves from point a to point b at a constant velocity? Explain how you arrived at your answer.
(d) Does the Net Work-Kinetic Energy Theorem hold for this situation where friction is present?
A small office building air conditioner operates on 250 V AC and consumes 3.88 kW, What is its effective resistance and How is energy related to power? Check units for consistency
Two charges, and are the distance apart. These two charges are free to move but do not because there is a third charge nearby what should be the magnitude of the third charge and its placement in sequence for the first two to be in equilibrium.
Compute the linear momentum and angular momentum of a Frisbee of mass 0.166 kg if it has a linear speed of 2.75 m/s and an angular velocity of 47.5 rad/s
A 70.0 kg construction worker stands at the far end of the beam. What is the magnitude of the torque about the point where beam is bolted into place.
From illustrate what height did the student fall? Suppose that the only force acting on him during the collision is that due to the ground.
An Argon ion laser has a gain bandwidth of 2 GHz. Find the number of standing wave cavity modes within the gain bandwidth of the argon ion laser
A cylinder contains a piston on each side of which is one kilomole of an ideal gas. The walls of the cylinder are diathermal, What is the change in the Helmholtz potential
A 6.0 kg object undergoes an acceleration of 1.9 m/s2. Calculate the magnitude of the resultant force acting on the object
A uniform electric field of magnitude 256 V/m is directed in the negative y direction. A +12.9 uC charge moves from the origin to the point (x, y) = (20.0cm, 45.6 cm). What was the change in the potential energy of this charge? Through what potent..
A car drives north at 42 mi/h for 10 {rm min} and then turns east and goes 5.0 {rm mi} at 62 mi/h. at last, it goes southwest at 30 mi/h for 6.0 {rm min}.
At some point in its orbit, our asteroid is moving with a speed of 20 kilometers per second. Determine the kinetic energy of the asteroid
A particle has a charge of +1.7 %u03BCC and moves from point A to point B, a distance of 0.29 m. Find the magnitude of the electric force that acts on the particle
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