In one cycle, a freezer uses 800 j of electrical energy in order to remove 1735 j of heat from its freezer compartment at 10.0°f. part a)
what is the coefficient of performance of this freezer?
part b)
how much heat does it expel into the room during this cycle?

Explanation:

A)

W = work done by the freezer = 800 J

Q = heat removed from the freezer = 1735 J

Q' = Heat expelled into the room

Coefficient of performance is given as

inserting the values

B)

Heat expelled is given as

Q' = W + Q

Q' = 800 + 1735

Q' = 2535 J

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles