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Q. Rachel is a gymnast who trains 2 hours/day on average. She supports her daily activity by consuming 2,500 kilocalories per day. How many kilocalories should she be consuming from carbohydrate sources.

Q. A piston, A, as shown below, has a diameter of 0.54 cm. A second piston, B has a diameter of 3.7 cm. Determine the force, F, necessary to support the 500.0 N weight in the absence of friction.

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