If a system of pulleys results in a force of 25% of the load, how far will the rope need to move to pull the load a distance of
1 answer:
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Answer:
a) , b)
, c) Irreversible.
Explanation:
a) The power input required by the refrigerator is:
b) The Coefficient of Performance of the refrigerator is:
c) The maximum ideal Coefficient of Performance of the refrigeration is given by the inverse Carnot's Cycle:
The refrigeration cycle is irreversible, as .
Answer:
a) 199.04 ohms
b) attached in image
c) -0.696dB
Explanation:
We are given:
Fc = 8Khz = 8000hz
a)Using the formula:
R = 199.04 ohms
b) diagram is attached
c)
At F = 20KHz and Fc= 8KHz we have:
=0.923
|H(F)| in dB = 20log |H(F)|
=20log0.923
= -0.696dB
