Physics, 28.12.2020 01:20 silveryflight
A 500 W hair dyer is used to dry hair for 6 minutes a day for 3 days. How much energy is used? A laptop uses 75 W. The cot of electricity is 5.6 cents per kWh. How much would it cost to operate the laptop for 24 hours a day for one week? A toaster oven is 85% efficient. It uses 1200 J of energy. How much thermal energy is it producing?
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A 500 W hair dyer is used to dry hair for 6 minutes a day for 3 days. How much energy is used? A lap...
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