Drag force over a stationary object is of the flow velocity. in the direction op

Question

Drag force over a stationary object is of the flow velocity. in the direction opposite of the direction perpendicular to the direction independent of flow direction A professional diver dives to a depth of 5 m in a lake. If atmospheric pressure on lake surface is 100 kPa, g=9.8 m/s2, and density of water is 1000 kg/m3, calculate the total pressure in kPa on the diver (select nearest answer). 149000 kPa 149 kPa 95 kPa 242000 kPa 242 kPa Viscosity, mu, is expressed as a proportionality constant between sheer stress, tau, and gradient of speed, tau = mu x (du/dy). What are the units of mu in terms of kg, m and s? kg/m2 kg/m2s kg/m kg/ms kg/m2s2 Terminal velocity - occurs at the end of an object's trajectory occurs when drag force is equal to lift force occurs when drag force is equal to gravity force is a movie and has nothing to do with fluid mechanics The no-slip condition means: Fluid is in static condition Fluid sticks to the solid object surface Fluid flow is laminar over an object. Fluid flow is turbulent over an object. Fluid flow does not slip into the pipe - it stays out of the pipe. Water pressure 10 meters below the surface of a fresh water lake situated at sea level is the pressure 10 meters below the level of a lake which is the high altitude. less than equal to greater than

Explanation / Answer

a) opposite to direction of flow.

b) p = 5* 1000*9.8 + 100Kpa

p = 149 Kpa

c) kg/(m-s)

d) occurs when drag force is equal to gravity force

e) fluid stick to solid surface

f) less

because sea water has more density so high pressure

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