Question

A U-tube manometer is used to measure the pressure of water in a pipe line, which
is in excess of atmospheric pressure. The right limb of the manometer contains
mercury and is open to atmospheric pressure. The contact between water and
mercury is in the left limb. Determine the pressure of water in the main line, if the
difference in level of mercury in the limbs of U-tube is 10 cm and the free surface of
mercury is in level with the center of the pipe. If the pressure of water in pipe line is
reduced to 9810 N/m2

, calculate the new difference in the level of mercury.

Answer 1

Answer:

I don't know

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