Author Question: A ball is dropped from somewhere above a window that is 2.00 m in height. As it falls, it is visible ... (Read 66 times)

justinmsk · **on:** Jul 29, 2018

A ball is dropped from somewhere above a window that is 2.00 m in height. As it falls, it is visible to a person looking through the window for 200 ms as it passes by the 2.00 m height of the window.

From what height above the top of the window was the ball dropped? A)

8.32 m

B)

1.87 m

C)

4.15 m

D)

4.76 m

E)

6.78 m

Question 2

An object moves with constant speed through a fluid. For a fixed geometry and fluid density, if the viscosity of the fluid increases then the speed at which flow becomes turbulent

A)

increases.
B)

remains the same.
C)

decreases.
D)

could increase or decrease depending on the shape of the object.
E)

could increase or decrease depending on the value of the fluid density.