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A 130 g ball with speed 7.5 m/s strikes a wall perpendicularly and rebounds in the opposite direction with the same speed. The collision lasts 7.6 ms. What are the magnitudes of the
(a) impulse and
(a) average force on the wall from the ball?
Explain how much work is used to raise A to height h? What happens to the kinetic energy of B if its speed is doubled?
A refrigerator uses an ideal Carnot cycle to cool its interior. The outside air has a temperature of 302 K and the refrigerator is kept at a temperature of 276 K. find the coefficient of performance of this refrigerator
A conducting slab (think of a large flat sheet of metal) is large compared to the size of individual particles and molecules, Where does the excess charge reside
Suppose that by stirring 921 g of water you are able to increase its temperature from 19.0° C to 21.0° C. Find the increase in the water's entropy
First discuss how energy can be converted from one form to another, giving specific examples. Define what we mean
An archer puts a 0.33 kg arrow to the bowstring. An average force of 183 N is exerted to draw the string back 1.3 m. suppose that air resistance is negligible.
A solenoid is 8.93 cm long, 1.56 cm in diameter, and has 310 turns. find the magnetic flux through one turn of the solenoid
Two loudspeakers are placed next to each other and driven by the same source at a frequency of 570Hz. A listener is in front of the speakers and on the line separating them.
A 60 g bullet traveling at 230 m/s penetrates a block of ice at 0°C and comes to rest within the ice. suppose that the temperature of the bullet doesn't change appreciably, how much ice is melted as a result of the collision.
Establish steady-state electric field inside Nichrome wire
3.00 m-long, 350 steel beams extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 construction worker stands at the far end of beam.
All through an experiment, a block of wood with a mass of 250 g is placed on an inclined plane. While the plane is raised to an angle of 43o, the block slides down the plane at a constant speed.
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