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Q. A sled starts up an incline of 350 with the horizontal. The sled starts from the bottom with an initial velocity of 5 m/s. (a) How far u p the incline does it go? A second sled starts to slide from the top when the first sled starts to slide down. They reach the bottom simultaneously. What is the initial velocity of the second sled?

Q. A 150-g insulated aluminum calorimeter containing 250g of water is initially at 20c. a200-g metal block at 60c is added to water, resulting in a final temperature of 22.8c. calculate the specific heat capacity of the block.

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