C because i know what i’m taking about
Answer:
D
Explanation:
I would say this awnser because its the only one that makes sence to me
Answer:
a) , b)
Explanation:
a) The coefficient of performance of a reversible refrigeration cycle is:
Temperatures must be written on absolute scales (Kelvin for SI units, Rankine for Imperial units)
b) The respective coefficient of performance is determined:
But:
The temperature at hot reservoir is found with some algebraic help:
Answer: resistor
Explanation: Not quite sure. Need more research