Answer:
619.8 N
Explanation:
The tension in the string provides the centripetal force that keeps the rock in circular motion, so we can write:

where
T is the tension
m is the mass of the rock
v is the speed
r is the radius of the circular path
At the beginning,
T = 50.4 N
v = 21.1 m/s
r = 2.51 m
So we can use the equation to find the mass of the rock:

Later, the radius of the string is decreased to
r' = 1.22 m
While the speed is increased to
v' = 51.6 m/s
Substituting these new data into the equation, we find the tension at which the string breaks:

Answer:
30.5
Explanation:
because you will basically have to be like flash
Answer:
That is true. They share atoms with each other. I hope this helps. Comment if you have any question
Explanation:
The answer would be A because
Hello there,
<span>What are some questions that philosophers ask about knowledge?
I hope I would be understanding your question right. But I believe that on question they could ask is " What part in the human brain could store up all this knowledge that any human can store".
I truly hope this helps.
~Jurgen</span>