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by amishley1421
Wed May 29, 2019 2:46 pm
Forum: OAT Physics
Topic: Re: Practice Test Physics # 4
Replies: 1
Views: 11902

Re: Practice Test Physics # 4

4. Given a cost of electricity of $0.15 per kilowatt-hour (kWh), how much is saved by switching from a 60 watt light bulb to a 25 watt compact fluorescent bulb for 200 hours? A. Less than $1 B. Between $1 and $5 C. Between $5 and $50 D. More than $50 E. Explanation: This is strictly a problem of dim...