A refrigerator is removing heat from a cold medium at 3∘C at a rate of 5400 kJ/h and rejecting the waste heat to a medium at 30∘ C. If the coefficient of performance of the refrigerator is 2, the power consumed by the refrigerator is
1 answer:
Answer:(b) 0.75 kW
Explanation:
Given
temperature of cold region
Heat removal at the rate of
temperature of hot region
COP of refrigerator =2
COP of a refrigerator is given by ratio of desired effect to the Power input
COP
You might be interested in
Plato was the one that suggested that the brain is the mechanism of mental process.
Erosion, weathering, mechanical changes, chemical changes.
Really, any interaction can change the composition of a rock whether it be done by man or through nature.
1 mile = 1.609 km83,885.1 miles
I = MR^2
The Attempt at a Solution:::
I total = (3M)(0)^2 + (2M)(L/2)^2 + (M)(L)^2
I total = 3ML^2/2
It says the answer is 3ML^2/4 though.
⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔⛔
mark it as brainliest.... ✌✌✌
Answer:
270 mi/h
Explanation:
Given that,
To the south,
v₁ = 300 mi/h, t₁ = 2 h
We can find distance, d₁
To the north,
v₂ = 250 mi/h, d₂ = 750 miles
We can find time, t₂
Now,
Average speed = total distance/total time
Hence, the average speed for the trip is 270 mi/h.
