A general career in engineering... like petroleum engineer for fossil fuel drilling, mechanical engineer for hydro/geo/solar/wind or chemical engineer for biomass, solar and nuclear.
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No answer is possible until we know the number that belongs after the words "... angular speed of ".
Answer:
hello your question is incomplete attached below is the complete question with the options
answer : Doubling the Diameter increases the heat transfer rate by a factor of 4 ( B )
Explanation:
The heat transfer in the axial direction of the cylinder can be calculated/determined as attached below
= 4
( This shows that Doubling the diameter increases the heat transfer rate by a factor of 4 )
When material stuff is free to move, it moves away from stronger force on it to weaker force on it. OK ? Now take it to the next step: When material stuff is free to flow ... like liquid or gas ... it flows from higher pressure to lower pressure. That's what makes wind, and that's why water comes out of a garden hose when you open the nozzle. It doesn't amaze you at all when you INCREASE the pressure at one end of the straw (blow into it), and air moves DOWN and out of it. So it shouldn't bother you that when you DECREASE the pressure at your end, anything that's free to flow UP the straw will do that.
