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Question: A sealed tank containing water to a height 11 m also contains air at 3 atm. Water flows out the bott...

A sealed tank containing water to a height 11 m also contains air at 3 atm. Water flows out the bottom of a tank through a small hole. Find efflux velocity.

A

18.1 ms-1

B

24.2 ms-1

C

26.4 ms-1

D

28.6 ms-1

Answer

28.6 ms-1

Explanation

Solution

vefflux =

= 2(3×105+11×10×103)103=820=28.6 ms−1\sqrt { \frac { 2 \left( 3 \times 10 ^ { 5 } + 11 \times 10 \times 10 ^ { 3 } \right) } { 10 ^ { 3 } } } = \sqrt { 820 } = 28.6 \mathrm {~ms} ^ { - 1 }