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A 160-lb person burns about 2900 calories to run a marathon. how much energy is burned in kj? assume two significant figures.
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A 160-lb person burns about 2900 calories to run a marathon. how much energy is burned in kj? assume two significant figures.

User PhABC
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two figures? there are at least three so this question is trying to trick u sorry
User David Khuu
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