Power: Suppose you left five 100-W light bulbs burning in the basement for two weeks. If electricity costs 10.0¢/kW?h, (a) how much did the electricity cost (to the nearest dollar) to leave those bulbs on, and (b) how many joules of electrical energy did they consume?
What will be an ideal response?
(a) $17 (b) 6.05 × 108 J
Physics & Space Science
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