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17 September, 11:20

A 3kw oven supplied with 9kj of energy. How many seconds can it be run for

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  1. 17 September, 11:25
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    Energy. Power x Time. Example 1: How much energy does a 40 Watt bulb use in 2 minutes? ... How long does it need a 1500 Watt vacuum cleaner to produce 3000 Joules of energy? ... How many units of electricity are used when you run a 2kW cooker for 4 hours ... How much would it cost to run a 3kW heater for 10 hours.
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