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A common unit of energy used in food chemistry is the food calorie (1 Cal =...

A common unit of energy used in food chemistry is the food calorie (1 Cal = 4186 J). What speed must a 42 kg person walk to have a kinetic energy equal to a donut (300 Cal)?

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1m0% I donuト300 cal iver. 37.8 x 0 mls

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