Determine the energy used in watt hours. c. At $0.08/kWh, how much does it cost to run this light for 9 hours?

Assignment
o A resistor dissipates 723 joules of energy in 3 minutes and 47 seconds. Calculate the rate at which energy is being transferred to this resistor in joules per second. What is its power dissipation in watts ?
O A 40-W night safety light burns for 9 hours.
a. Determine the energy used in joules.
b. Determine the energy used in watt hours. c. At $0.08/kWh, how much does it cost to run this light for 9 hours?
o For a certain device, 7-94%. If losses are 18 W, what are Pin and Pout?

Engineering

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Determine the energy used in watt hours. c. At $0.08/kWh, how much does it cost to run this light for 9 hours?

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