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Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground
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An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?
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Ahockey puck sliding along frictionless ice with speed v to the right collides with a horizontal spring and compresses it by 3.0 cm before coming to a momentary stop.
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A flea jumps straight up to a maximum height of 0.500 m . What is its initial velocity v0 as it leav...
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