Problem: A refrigerator uses 900 kWh of electrical energy per year. How many joules of electricity are used in two years?A. 3.24 x 109 JB. 6.48 x 109 JC. 2.50 x 10-4 JD. 5.00 x 10-4 J

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A refrigerator uses 900 kWh of electrical energy per year. How many joules of electricity are used in two years?

A. 3.24 x 109 J

B. 6.48 x 109 J

C. 2.50 x 10-4 J

D. 5.00 x 10-4 J