Physics, 07.05.2020 14:01 Pipemacias9995

In one hour, coal supplies 500 000 J of energy. The energy amounts to 380 000 J. How much useful energy is produced in one hour?

In one hour, coal supplies 500 000 J of energy. The energy amounts to 380 000 J. How much useful ene

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In one hour, coal supplies 500 000 J of energy. The energy amounts to 380 000 J. How much useful ene...

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