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A thin flat plate is 12 m long and 8 m wide. The air density is 1.23 kg/m3.
a) What is the maximum velocity for the boundary layer to remain laminar over the entire plate (the transition occurs at the end of the plate)?
b) What is the boundary layer thickness for the velocity of part a)?
c) What is the drag force for the velocity of part a)
d) If the velocity is 10 m/s determine the drag force on the plate.
e) Determine the drag force for part a) and d) using the drag coefficient, CD, for a thin flat plate. How do they compare with the drag forces computed in part c and d)?
Block A, 5lb, strikes block B, 10lb. Block A is moving with the intial velocity, Va, and block B is at rest. After striking block B, block A travels 2 in. to the right and block B travels 3 in. to the right.
calculate the moment of inertia for the Milkyway. Assume it to be a disk.
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a moist soil has a total unit weight of 110 pcf and a water content of 6 percent. assuming that hte dry unit weight is to remain constant , determine how much water , in gallons per cubic yard, must be added to increase the water content to 12 per..
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