Answer:
For a free stream velocity of 135 mi/hr compressibility effects begins in flow.
Explanation:
Calculate the maximum velocity using the following relation
Now substitute for and 270 mi/h for
⇒
135 mi/hr
Answer:
Blowing on it will cool it down.
Explanation:
Air blown from peoples lungs is faster because of the small temperature difference with the hot baked potato.
Answer:
See explaination
Explanation:
Lets first consider the term Isentropic efficiency. The isentropic efficiency of a compressor or pump is defined as the ratio of the work input to an isentropic process, to the work input to the actual process between the same inlet and exit pressures. IN practice, compressors are intentionally cooled to minimize the work input.
Please kindly check attachment for the step by step solution of the given problem.
Answer:
A) 2P/(¶r^2)
B) p/(¶r^2)
Explanation:
Force = P
Radius = r
Area on which force acts = ¶r^2
If both forces are applied, total stress will be
S = 2P/(¶r^2)
When only one of the force is applied
S = p/(¶r^2)