A boy kicks a ball away in a football field.
Which of the following is true about his work done?
a. The energy is dissipated in the air.
b. The energy has transferred from one object to another.
C. The boy does not perform any work.
d. The work done produces twice the amount of heat energy.
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An electric power distributor charges residential customers $0.10 per kilowatt-hour (kwh). the company advertises that "green power" is available in 150 kwh blocks for an additional $4 per month. (green power is generated from solar, wind power, and methane sources.) if a certain customer uses an average of 391 kwh per month and commits to one monthly 150 kwh block of green power, what is her annual power bill
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A boy kicks a ball away in a football field.
Which of the following is true about his work done?
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