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A 5kg sphere moves at 20m/s makes a perfectly inelastic collision with a second sphere that is at rest. Both spheres have a velocity of 10m/s after the collision.
a) What is the mass of the second sphere?
b) How much kinetic energy is lost in the collision?
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A box of 10 kg is being pulled across a floor with a tension force of 50 N. Assume the box started from rest and reached a speed of 2 m/s
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In one form of plethysmograph (a device for measuring volume), a rubber capillary tube with an inside diameter of 1.22 mm is filled with mercury at 20°C, Calculate the resistance of the mercury
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If 40 g of hot water at 80°C is poured into a cavity in a very large block of ice at 0°C, what will be the final temperature of the water in the cavity? Explain how much ice must melt in order to cool the hot water down to this temperature?
determine the mass of liquid ammonia that boils away before thermal equilibrium. Assume an excessive amount of liquid ammonia is present and that the liquid ammonia does not react with the copper.
Identical objects are located at the same distance from two spherical mirrors, A and B. Find the ratio fA/fB of the focal lengths of the mirrors
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