1. Find the mechanical work equivalent (in J) of 8550 cal of heat.
2. Find the heat equivalent (in Btu) of 3.46 x 106 ft lb of work.
3. Find the heat equivalent (in kcal) of 7.63 x 105 J of work.
4. How much work must a person do to offset eating a piece of cake containing 625 cal?
5. How much work must a person do to offset eating a 200-g bag of potato chips if 28 g of chips contain 150 cal?