USE THE FOLLOWING CONSTANTS (You may not need to use all of them for this questi

ID: 2017131 • Letter: U

Question

USE THE FOLLOWING CONSTANTS

(You may not need to use all of them for this questiong)

Unless I mention it, these experiments occur on the surface of the earth

and the atmosphere is ’air’.

Gravity on earth is 10 meters per second squared.

Gravity on the moon is one sixth that of earth’s gravity.

Speed of sound in air is 350 meters per second.

Density of water is 1000 kilograms per cubic meter.

Density of mercury is 15000 kilograms per cubic meter.

Density of ethyl alcohol is 750 kilograms per cubic meter.

All answers must come with explanations. Merely guessing will not give you

full credit.

1 Bernoulli’s Equation

A cylindrical tank 8 feet high and 25 feet in circumference is full of water

and at the top of a hill. A pump pulls water out of this tank at a pressure

of 2 atm and sends it down a circular pipe of radius 4 centimeters. It drains

water at a constant prssure and velocity for 30 seconds and then stops. The

tank is now 20 percent full.

The pipe goes down a hill of height 40 meters and comes out. The pipe at

this point is a square of 20 centimeters to a side.

While the pump is running, what is the pressure and velocity of the water

as it comes out? What is the pressure and velocity of the fluid coming out

if all variables remain the same except that the fluid is now liquid mercury?

The units for your answers must be in atm or meters per second.

I dont see any values or constants to work on....Recheck and post it again to get more help. Cheers PK!

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