Electric power companies measure energy consumption in kilowatt-hours, denoted kwh. one kilowatt-hour is the amount of energy transferred by 1 kw of power in a period of 1 hour. a power company billing statement reports auser's total energy usage to be 1500 kwh. find the amount of energy in joules used during the billing period.

The amount of energy used in the billing period is 5,400,000,000 joules.

One kWH is the amount of energy transferred in one hour, there 1 kWh is equal to

1 kWh=1*1000*(J/s)*3600 s

=3600000 J

Thus the amount of energy in joules consumed by the user for the billing period is =1500*3600000=5,400,000,000 J.

The amount of energy used in the billing period is 5,400,000,000 joules.

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