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A bat strikes a 0.145 kg baseball. Just before impact, the ball is traveling horizontally to the right at 50.0 m/s, and it leaves the bat traveling to the left at an angle of 30.0 degrees above horizontal with a speed of 65.0 m/s.
A) What is the horizontal component of the impulse the bat imparts to the ball?
B) What is the vertical component of the impulse the bat imparts to the ball?
C) If the ball and bat are in contact for 1.75 , find the horizontal component of the average force on the ball.
D) If the ball and bat are in contact for 1.75 , find the vertical component of the average force on the ball.
A heat engine has a useful work output of 4.0 kJ and expels 8.0 kJ of exhaust energy in each cycle. what is the engine's thermal efficiency
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Three moles of an ideal monatomic gas are at a temperature of 340 K. Then 2701 J of heat is added to the gas, What is the final temperature of the gas
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Light from a laser beam with a wavelength of 600 nm passes through a narrow single slit and observed on a screen 1.5 m behind the slit. The first minimum of the diffraction pattern is 1.5 cm from the central maximum. How wide is the slit?
A 188.0 g piece of lead is heated to 81.0oC and then dropped into a calorimeter containing 692.0 g of water that initally is at 21.0oC.
A uniform rod of length 0.790 m and mass 14.50 kg is balanced on a sharp edge at 0.650 m from the left end. At the left end hangs a mass of 45-kg and the right end hangs an unknown mass so that the whole assembly is in equilibrium.
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