Problem with Bernoulli's equation.

AI Thread Summary
The discussion revolves around applying Bernoulli's equation to calculate the speed of water flowing from a hole in a can. The initial water depth is 20.6 cm, with the hole located 1.7 cm from the bottom. The derived formula for speed is v = √(2gh), where h is the depth of the hole below the water surface. The calculations provided yield speeds of 1.92 m/s when the can is full and 1.298 m/s when half empty, but these results are deemed incorrect. The user suspects the issue lies in the interpretation of the height (h) used in the calculations.
mimi83
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Homework Statement




An open can is completely filled with water, to a depth of 20.6 cm. A hole is punched in the can at a height of 1.7 cm from the bottom of the can. Bernoulli's equation can be used to derive the following formula for the speed of the water flowing from the hole.

In this formula, h represents the depth of the submerged hole below the surface of the water. (a) How fast does the water initially flow out of the hole? (b) How fast does the water flow when the can is half empty?

Homework Equations



v=\sqrt{}2gh

The Attempt at a Solution

 
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Assuming that is the correct equation, part (a) should be v=sqrt[(2)(9.8)(.189)] which equals 1.92 m/s. Part (b) should be v=sqrt[(2)(9.8)(.086)] which equals 1.298 m/s.
 
thank your for helping me, but the answers are incorrect. I think the problem is about the height ( h).
 
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