Under normal conditions the human heart convertsabout 13.0 J of chemical energy per second into 1.30 W ofmechanical power as it pumps blood throughout the body.(a) Determine the number of Calories required to powerthe heart for one day, given that 1 Calorie equals 4 186 J.(b) Metabolizing 1.00 kg of fat can release about 9.00 x 103Calories of energy. What mass of metabolized fat would powerthe heart for one day?

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