How can I level off a wall?

How do you prove that in fluids pressure against the wall say in a dam varies with level (height)?

  • your solution should be from an analysis of a float connected to a frictionless variable analogue or electronic variable resistor. the arrangement connected to an a.c supply voltage should measure current as the float varies with the level of water. show expressions and any other necessary engineering expressions

  • Answer:

    The pressure against the wall is equal to the weight of the water above it. If you are measuring pressure in pounds per square inch, the pressure at a given depth is the weight of a column of water 1 inch by 1 inch by the depth. Your explanation of what the solution should be makes no sense whatsoever. You cannot provide a proof of a pressure principle with electronics.

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Other answers

The pressure on the wall is equal at all heights.

edhchoe

Look into manufacturers of mercury floats for a wetwell for a pump station. They should have some calculations or brochures. The 'proof' of this lies in your statics & dynamics background--look at any 'triangular' shaped load on a surface.

elietzen

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