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A 53 kg student eats a 200 Calorie doughnut.
To “burn it off”, he decides to climb the
steps of a tall building. (1 food Calorie = 103
How high would he have to climb to expend
an equivalent amount of work? The accelera-
tion of gravity is 9.8 m/s2 .
Answer in units of m.

i have no attempt. i have no idea what to do. and there are many where that came from

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