Answer:
I think the acceleration is 12m/s
Answer: Approximately 8.0g of water
Explanation:
Yes. sound waves are produced by energy.
Answer:

Explanation:
We have:
diameter of the wheel, 
weight of the wheel, 
mass of hanging object to the wheel, 
speed of the hanging mass after the descend, 
height of descend, 
(a)
moment of inertia of wheel about its central axis:



