How does surface roughness affect the pressure drop in a tube if the flow is turbulent? What would your response be if the flow were laminar?
What will be an ideal response?
In turbulent flow, the tubes with rough surfaces have much higher friction factors than the tubes with smooth surfaces. In the case of laminar flow, the effect of surface roughness on the friction factor is negligible.
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A ________ is a uniform and stable plant population that retains recognizably distinct characteristics when propagated.
Fill in the blank(s) with the appropriate word(s).
When referring to humidity, why is a cooling coil deeper (more rows) than a heating coil?
What will be an ideal response?
Combining rise and offset into one dimension refers to
Fill in the blank(s) with the appropriate word(s).
____ water returns to the surface of the earth in the form of rain, sleet, hail, or snow
A) Geological B) Surface C) Running D) Meteoric