Respostas

2014-01-27T10:13:27-02:00
Resposta

Pot = 100W = 0,1kW
t = 10h

Energia consumida El em quilowatts-hora

El = Pot*t
El = 0,1*10
El = 1kWh

Em joules

1kWh = 3,6*10^6J

Assim

Pot = 100j/s
t = 10h = 36000s

El = Pot*t
El = 100*36000
El = 3600000J

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