Posted by Alice on Friday, May 11, 2012 at 11:38am.
Calculate the cost of operating a 65 W light bulb continuously for a 30day month when electrical energy costs $0.23/kW·h.
$ 1
How do you calculate cost?
whats the equation?

physics  bobpursley, Friday, May 11, 2012 at 12:42pm
cost= price/kwhr*timeinHours*powerinKw
=$.23/kwHr*30days*24hrs/day*.065kw
Alice: These problems are designed for you to invent an equation, think it out, and seek the relationships between time, power, money
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