Answer:
a)
, b)
, c)
, d)
, e) 
Explanation:
a) The coefficient of performance of the reversible refrigeration cycle is:


The temperature of the hot reservoir is:



b) The coefficient of performance is:


c) The temperature of the hot reservoir can be determined with the help of the following relation:






d) The coefficient of performance is:


e) The temperature of the cold reservoir is:




Answer:
The horizontal conductivity is 41.9 m/d.
The vertical conductivity is 37.2 m/d.
Explanation:
Given that,
Thickness of A = 8.0 m
Conductivity = 25.0 m/d
Thickness of B = 2.0 m
Conductivity = 142 m/d
Thickness of C = 34 m
Conductivity = 40 m/d
We need to calculate the horizontal conductivity
Using formula of horizontal conductivity

Put the value into the formula


We need to calculate the vertical conductivity
Using formula of vertical conductivity

Put the value into the formula


Hence, The horizontal conductivity is 41.9 m/d.
The vertical conductivity is 37.2 m/d.
Answer: the answer will be d because it is the right one to be
Explanation:
The effect would be the altitude of the air, the higher you go up the closer you are to space we’re there’s no oxygen and everything moves slow so when your trying to fly across the world it could feel like your moving slower
Answer:
Sell his crop, use his crop as food, and sell his crop
Explanation: