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14 October, 14:05

A small business owner converts 120 J of her internal energy to electricity by peddling a bike for 1 second, which for a conversion efficiency of 40 percent, amounts to a power output of 48 watts. if she peddles a bike for 8 hours each day about how much money can she in one day assuming she sells for the electricity for 10.43 cents / kWh

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  1. 14 October, 17:12
    0
    4.00512 cents

    Step-by-step explanation:

    Given:

    Power output = 48 Watts

    Time for which owner paddles = 8 hours

    Selling price of the electricity = 10.43 cents/kWh

    Now,

    Power = Energy * Time

    or

    Power generated = 48 * 8 = 384 Wh = 0.384 kWh

    now,

    Money earned will be = Power generated * selling price per kWh

    or

    Money earned = 0.384 kWh * 10.43 cents / kWh = 4.00512 cents
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