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Physics

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A 320W electric blanket is left on for 8 hours. How many KWh or electrical energy is used? If the unit is 8 cents. What is the cost of using the electric blanket each evening?

Answer :

keijosalonen keijosalonen

Today at 4:41 AM

Answer: 2.56 kWh , cost 20.5 cents

Explanation: Energy E = P·t = 320W· 8 h = 2560 Wh

Costs is 8 cents · 2,56 = 20.5 cents

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