One homeowner uses electricity to heat a home (with 100% efficiency) at an annual cost of $2600. a second homeowner uses a heat pump with a coefficient of performance of 7 to heat an identical home. what is the second homeowner's annual heating cost?

the second homeowner's annual heating cost is $371.42

Explanation:

given data

efficiency = 100 %

annual cost = $2600

coefficient of performance = 7

to find out

the second homeowner's annual heating cost

solution

we know that COP ( coefficient of performance ) is inversely proportional to electricity bill or annual heating cost

so

we can say COP for heat pump 1 is =  =

COP of pump 1 = 1

so

put here value

annual cost = $371.42

so  the second homeowner's annual heating cost is $371.42

answer:

all three have their own beauties

explanation:

it is difficult to choose someone as most beautiful