For B, it is because water is a really good conductor of electricity, so the electrician will get shocked
Thinner at edges and its thick in the middle
Answer:
The number of revolutions is 44.6.
Explanation:
We can find the revolutions of the wheel with the following equation:

Where:
: is the initial angular velocity = 13 rad/s
t: is the time = 8 s
α: is the angular acceleration
We can find the angular acceleration with the initial and final angular velocities:

Where:
: is the final angular velocity = 57 rad/s

Hence, the number of revolutions is:

Therefore, the number of revolutions is 44.6.
I hope it helps you!
Altitude is the height of something or the point of sea level or ground level.
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