Answer:
The stress S = 1935 [Psi]
Explanation:
This kind of problem belongs to the mechanical of materials field in the branch of the mechanical engineering.
The initial data:
P = internal pressure [Psi] = 90 [Psi]
Di= internal diameter [in] = 22 [in]
t = wall thickness [in] = 0.25 [in]
S = stress = [Psi]
Therefore
ri = internal radius = (Di)/2 - t = (22/2) - 0.25 = 10.75 [in]
And using the expression to find the stress:
![S=\frac{P*D_{i} }{2*t} \\replacing:\\S=\frac{90*10.75 }{2*0.25} \\S=1935[Psi]](https://tex.z-dn.net/?f=S%3D%5Cfrac%7BP%2AD_%7Bi%7D%20%7D%7B2%2At%7D%20%5C%5Creplacing%3A%5C%5CS%3D%5Cfrac%7B90%2A10.75%20%7D%7B2%2A0.25%7D%20%5C%5CS%3D1935%5BPsi%5D)
In the attached image we can see the stress σ1 & σ2 = S acting over the point A.
There are several information's of immense importance already given in the question. Based on the given information's the answer to the question can easily be determined.
Distance covered by the bicycle = 5000 meter
Time taken by the bicycle to reach the distance = 500 second.
Velocity of the bicycle = Distance / Time taken
= 5000/500 meter/second
= 50 meter/second
So the velocity of the bicycle is 50 meter per second. I hope the procedure is clear enough for you to understand. In future you can always use this procedure for solving similar problems.
I believe the answer is heat.
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