Physics, 21.09.2019 03:00, noneofurbznessp2yc11

In a certain city, electricity costs $0.13 per kw·h.
what is the annual cost for electricity to power a lamp-post for 7.50 hours per day with (a) a 100.-watt incandescent light bulb (b) an energy efficient 25-watt fluorescent bulb that produces the same amount of light? assume 1 year = 365 days.
(a) 100.-watt bulb
(b) 25-watt bulb

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In a certain city, electricity costs $0.13 per kw·h.
what is the annual cost for electricity...