Answer:
a) T=41.25 in-lb
b) Resulting stress=6493.5 lb/in^2
Explanation:
a) The torque is:

where C is the torque coefficient, F the force and D is 3/8. Replacing:

b) The area is:

The resulting stress is:

Answer:
The pump horse power required per mile of pipe 
Explanation:
The explanation is shown on the second third and fourth image
It make sense that the temperature of the oil is high even though the pipeline is in a cold environment this is so because where the oil is been tapped from is way hotter than the temperature of the pipeline environment because it is closer to the earths crust than the environment of the pipeline
Answer:
c is the answer because we have to double the number