A certain cylindrical drum is 3 m in height. It is filled with water. Atmospheri

Question

A certain cylindrical drum is 3 m in height. It is filled with water. Atmospheric presure is 10^5 Pa, and the density of water is 1000 kg/m^3

A. What is the water pressure at the top of the barrel? Explain. Express your answer in Pa.

B. What is the water pressure at the bottom of the barrel?

C. A 1mm inside diameter 30 m long steel pipe is inserted through the top of the drum. Water is poured in to fill the pipe. What is the mass of water in the pipe?

D. If the "burst strength" of the drum is 4*10^5 Pa, will the drum burst?

Explanation / Answer

A. 10^5 pa
B. 10^5 + (1000*3*9.8) = 129400 Pa
C. volume = pi*r^2 *h
= 2.356 * 10^-5 m^3
so,
mass = 0.02356 kg = 23.56 gm
D. No,
as
129400 Pa < 4*10^5 pa

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