Proof Read;Physics Solution
At a point in a pipe carrying a fluid, the diameter of the pipe is 5.0 cm and the average speed of the fluid is 10 cm/s. What is the average speed, in m/s, of the fluid at a point where the diameter is 2.0 cm?

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- anonymous

- katieb

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- anonymous

Since I already know the diameter of the original tube which is 5.0cm,
The area of the circle is calculated by (3.14)(2.5)^2=19.625cm^2
On the other hand the area of the second tube where the diameter is decreased from 5.0cm to 2.cm the area is (3.14)(1.00)^2=3.14cm^2
Therefore assuming that equation of continuity holds true in this situation
10m/s*(19.625cm^2/3.1cm^2)=10m/s*6.330=63.30m/s^2
Adjusting for sig figs of 1,
Therefore velocity of the water increased from 10m/s^2 to 60m/s^2 .

- anonymous

Please see if my solution is well reasoned according to the principles of continuity equation. Thanks!

- anonymous

Oh by the way this is hydraulics and pneumatics

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- anonymous

Just so you know I am not big on those

- anonymous

@nevermind_justschool

- anonymous

- anonymous

In my honest opinion this line of reasoning seems pretty sound to me.

- nevermind_justschool

Looks good to me :) And your reasoning sounds pretty good also. Great Job :)

- anonymous

Oh yeah you think? I trust you buddy

- nevermind_justschool

Yeah I think it looks pretty good :)

- UsukiDoll

blah I'm kind of horrible at Physics :(
and it's almost 3:30 am , so my mind needs to go zzz zzz

- anonymous

Thanks for your try though !

- anonymous

Water behaves like air does... But some properties are so different that water is used as multiplier of force.

- anonymous

Did you learn about hydrostatic paradox?

- UsukiDoll

no... I'm more geared towards the general computational math and pure math. So, anything to do with Science, I will run real fast . ^_^

- anonymous

If you combine your brain and my brain it will be well balanced

- anonymous

I am like screw-math-science-rocks kinda guy so

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