Answer:
Power = 606.83 hp/mile
Explanation:
Given data:
diameter of pipeline is 36 inches = 3ft
flow rate is 590,000 barrels per day = 28.755 ft^3/sec
temperature of pipe = 46 degree celcius
length of pipe is 1.9 mile = 10032 ft
velocity of flow
applying bernouli eq at two point in pipeline
P1 = P2
v1 = v2
z1 = z2 so we have




POwer 

Power P = 1152.99 hp 0
power needed for each mile 
Answer: 
Explanation:
Given
Mass 
Spring constant 
Compression in the spring 
When the mass leaves the spring, the elastic potential energy of spring is being converted into kinetic energy of mass i.e.

The kinetic energy of the mass is 1.102 J.
Of these options the one which best answers the question is 'Use whatever professionals claim to use.'
It is not that professional recommendations should not be consired or valued. The reason you should not just use whatever professionals claim to use is that their needs, as professionals, may be very different from your own. In order to know whether your own needs will be met you need to know what those needs are and whether the product meets those needs. All of the other options given would help you to figure this out, but the testimony of professionals would not.