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chemistry

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when a ball is dropped throuh a height, its potential energy changes. Suppose all this energy gets converted into internal energyof the ball once it has stopped bouncing and the specfic heat of the vall is 0.850 j/g-k(no heat loss to the environment). Calculate the height from wich the ball must be dropped to increase its temp. by 1.00 degree c?
b) At what velocity must a 20.0g object be moving to posssess a kinetic energy of 1.00 J?

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