Chapter 20: Problem 13: A small office building air conditioner operates on 406 V AC and consumes 53 kW. Randomized Variables V = 406 V P = 53 kW cost = 7.5 cents/kW ⋅ h a) What is its effective resistance, in ohms?  b) What is the cost, in dollars, of running the air conditioner during a hot summer month when it is on 8.00 hrs/day for 30 days and electricity costs 7.5 cents/kW ⋅ h?

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