A liquid is contained between two circular plates. The top plate is stationary, and the bottom plate is spinning at a speed w = 74.7 RPMs. If you assume that the velocity is only in the theta direction, what is the velocity in cm/s at r = 18.0 cm and z = 5.4 cm? Assume the gap between the two plates is 12.7 cm and that the fluid is water. Assume the Re

The correct answer is 80.94

Flat free surface Water L w (theta direction)