A dry battery can deliver 3000J of energy to a small 2w electric motor before the battery is exhausted For how many minutes does the motor run?

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Answer

1266910

2026-03-10 22:40

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If everything proceeds at a constant rate . . .

2 watts = 2 joules per second.

3,000 joules lasts 1,500 seconds = 25 minutes

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