<span>Answer: Work done is a measure of the energy transferred when a force moves a load, power is the rate of energy transfer.</span>
To solve this problem we will start from the given concept in which the number of turns is equivalent to the length of the thread per circumference of spool. That is:

Where,
l = length of the thread
= circumference of spool
For \phi we have that,

For l we have that
l = 62.8m
Finally the number of Turns would be,



Therefore the number of turns of thread on the spool are 1000turns.
I personally think the answer is B.
<span>"Non-
horizontal rock layers were tilted or folded after they were originally
deposited; this makes the law of superposition challenging to use."</span>
Hoped I helped!
Radiocarbon saying assume the half life for radioistopes change over time. The half life of C -14 is 5730 years
The mechanical advantage is (4meters) / (0.8meter) = <em><u>5</u></em> .