CONTEXT-RICH To work off a large pepperoni pizza you ate
Chapter , Problem 61(choose chapter or problem)
CONTEXT-RICH To work off a large pepperoni pizza you ate on Friday night, on Saturday morning you climb a 120-m-high hill. (a) Assuming a reasonable value for your mass, determine your increase in gravitational potential energy. (b) Where does this energy come from? (c) The human body is typically 20 percent efficient. How much energy was converted into thermal energy? (d) How much chemical energy is expended by you during the climb? Given that oxidation (burning) of a single slice of pepperoni pizza releases about (250 food calories) of energy, do you think one climb up the hill is enough?
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