Concept explainers
To make your workouts more productive, you can get an electrical generator that you drive with the rear wheel of your bicycle when it is mounted in a stand.
a. Your laptop charger uses 75 W. What is your body’s
b. Your laptop takes 1 hour to recharge. If you run the generator for 1 hour, how much energy does your body use? Express your result in joules and in Calories.
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