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physic

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I need help with this question

How many calories does a 75-kg woman use in walking up stairs to a point that is 20m higher? answer is 3571 I got to show how they got the answer.

  • physic -

    work=mass*g*20joules (1calorie/4.18joules)

  • physic -

    thank you i am not getting 3571 with that formula am i doing something wrong

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