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## Homework Statement

Consider two friends who go to Burger King every day for lunch. One of them orders a double whopper sandwich large fries and a large coke (total cal = 1600) while the other orders a whopper junior small fries and a small coke every day (cal = 800).

if these two friends are very similar otherwise and they have the same metabolic rate, determine the weight difference between these two friends in a year.

## Homework Equations

I know of know no other equation that relates energy to mass besides this one.

Does it apply here?

E=mc^2