Question

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?

Answer 1

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 .

Answer 2

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

Answer 3

Oh by the way this is hydraulics and pneumatics

Answer 4

Just so you know I am not big on those

Answer 5

@nevermind_justschool

Answer 6

@UsukiDoll

Answer 7

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

Answer 8

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

Answer 9

Oh yeah you think? I trust you buddy

Answer 10

Yeah I think it looks pretty good :)

Answer 11

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

Answer 12

Thanks for your try though !

Answer 13

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

Answer 14

Did you learn about hydrostatic paradox?

Answer 15

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

Answer 16

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

Answer 17

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