Author Question: To determine the height of a bridge above the water, a person drops a stone and measures the time it ... (Read 28 times)

burchfield96 · **on:** Jul 29, 2018

To determine the height of a bridge above the water, a person drops a stone and measures the time it takes for it to hit the water. If the height of the bridge is 41 m, how long will it take for the stone to hit the water? Neglect air resistance.

A) 3.6 s B) 2.3 s C) 2.6 s D) 2.9 s E) 3.2 s

Question 2

Water flowing through a cylindrical pipe suddenly comes to a section of pipe where the diameter decreases to 86 of its previous value.

If the speed of the water in the larger section of the pipe was what is its speed in this smaller section if the water behaves like an ideal incompressible fluid?
A) 37 m/s B) 24 m/s C) 43 m/s D) 28 m/s

Madisongo23 · **Reply #1 on:** Jul 29, 2018

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