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WASSCE
The barometric reading at a place is 73.5cmHg. Calculate the pressure at a point 30m below the surface of water contained in a reservoir at the place.
[g = 10ms-2, density of mercury = 1.3 x 104kgm-3, density of water = 1.0 x 103kgm-3]
[g = 10ms-2, density of mercury = 1.3 x 104kgm-3, density of water = 1.0 x 103kgm-3]
A.
4.0 x 105 Nm-2
B.
3.0 x 105 Nm-2
C.
2.0 x 105 Nm-2
D.
1.0 x 105 Nm-2
Answer: B
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