Posted by **Alice** on Friday, May 11, 2012 at 11:38am.

Calculate the cost of operating a 65 W light bulb continuously for a 30-day 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/kw-hr*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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