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13 June, 21:21

A 1000 watt microwave oven takes 90 seconds to heat a bowl of soup. How many joules of energy does it use?

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  1. 14 June, 00:35
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    Energy in Joules = Power in Watts * Time in seconds.

    Energy = 1000 watt * 90 seconds.

    Energy = 90 000 Joules.
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