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11-07-2020
Physics

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A shower has a power of 10kw. A family uses the shower for 1 hour per day calculate how much energy, in kilowatt hours, they would have to pay for each week for using the shower. An electricity company charges 10p for each kwh calculate the cost in pounds

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mathmate mathmate

11-07-2020

Answer:

70p per week

Explanation:

Power * time = energy

1 kw * 1 hour = 1 kwh per day

For 7 days,

Energy used = 1 kwH/day * 7 days = 7kwh

Total cost per week = 7 kwh * 10p

= 70p

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