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Physics, 15.11.2020 20:30 ayoismeisjjjjuan

An athlete in a race exerts a force of 80 N for a distance of 100 m, while he uses up 40000 joules of food E
what is his efficiency?

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An athlete in a race exerts a force of 80 N for a distance of 100 m, while he uses up 40000 joules...

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