Calculate the Amount of Energy That Is Saved by Replacing

question 17

Multiple Choice

Calculate the amount of energy that is saved by replacing a 75-watt incandescent light bulb with an 18-watt fluorescent bulb during the 1500-hour life of the incandescent bulb.One watt is the equivalent of one joule of energy used per second.

• A)308,000 kJ
• B)405,000 kJ
• C)97,200 kJ
• D)27 kJ

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