68. What is the cost of operating a 3.00-W electric clock for a year if the cost of electricity is $0.0900 per kW h? ab yd bobgan how h bait O00 MOLK UGE te Bromg oOD COpbsicg to UE

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Chapter1: Units, Trigonometry. And Vectors
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Problem 68
W of is
ttn, pemaps
a mechanism that drives an electric generator.
by pedaling
many
electric power plant that generates 800 MW?
68. What is the cost of operating a 3.00-W electric clock
for a year if the cost of electricity is $0.0900 per kW •h?
ah bait
69. A large household air conditioner may consume 15.0
KW of power. What is the cost of operating this air
electricity is $0.110 per kW h?
conditioner 3.00 h per day for 30.0 d if the cost of
Neglecting any problems of generator efficiency and
by pedaling a mechanism that drives an electric generator.
dryer? (b) How many people would it take to replace a large
people would it take to run a 4.00-kW electric clothes
practical considerations such as resting time: (a) How many
Transcribed Image Text:W of is ttn, pemaps a mechanism that drives an electric generator. by pedaling many electric power plant that generates 800 MW? 68. What is the cost of operating a 3.00-W electric clock for a year if the cost of electricity is $0.0900 per kW •h? ah bait 69. A large household air conditioner may consume 15.0 KW of power. What is the cost of operating this air electricity is $0.110 per kW h? conditioner 3.00 h per day for 30.0 d if the cost of Neglecting any problems of generator efficiency and by pedaling a mechanism that drives an electric generator. dryer? (b) How many people would it take to replace a large people would it take to run a 4.00-kW electric clothes practical considerations such as resting time: (a) How many
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