Centripetal force of satellite = gravitational force between earth and the satellite
(m•v^2)/r = (G•Me•m)/r^2
v^2 = (G•Me)/r
v^2 = 6.67x10^-11 x 5.598x10^24 / 7.5x10^7
v = 2231 m/s
so answer is B
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<span>The Hudosn River
It flows over rock that has been around since the Middle Proterozoic Time Period. That is more then 542 million years ago.
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change in velocity=final velocity-initial velocity=9-3=6m/s
acceleration=change in velocity/time
=6/3=2m/s²
Explanation:
That`s is the answer, just check
Answer:
Explanation:
Using the free body diagram of the load, we obtain according to Newton's laws:
In this case we have:
We have to know the load maximum acceleration in order to calculate the maximum tension. So, we replace and in (1) and (2):
Now, we use the free body diagram of both bodies. Thus, we have: