Gravity decreases with the square of the distance, so the new force is (20)/(2*2) = 5N.
The largest is Mauna Loa on the Big Island of Hawaii; all the volcanoes in the Hawaiian Islands are shield volcanoes. There are also shield volcanoes, for example, in Washington, Oregon, and the Galapagos Islands
Answer: angular acceleration = ![2.86\ rad/sec^{2}](https://tex.z-dn.net/?f=2.86%5C%20rad%2Fsec%5E%7B2%7D)
Given:
Distance from center of axis = 1.6 m
Time taken to complete one revolution = 4.7 sec
Therefore, we can evaluate the angular acceleration using the following formula:
![\alpha = r\times \omega^{2}](https://tex.z-dn.net/?f=%5Calpha%20%3D%20r%5Ctimes%20%5Comega%5E%7B2%7D)
![\alpha = r\times (\frac{2\pi}{T})^{2}](https://tex.z-dn.net/?f=%5Calpha%20%3D%20r%5Ctimes%20%28%5Cfrac%7B2%5Cpi%7D%7BT%7D%29%5E%7B2%7D)
![\alpha = 1.6\times (\frac{2\times3.14}{4.7})^{2}](https://tex.z-dn.net/?f=%5Calpha%20%3D%201.6%5Ctimes%20%28%5Cfrac%7B2%5Ctimes3.14%7D%7B4.7%7D%29%5E%7B2%7D)
= ![2.86\ rad/sec^{2}](https://tex.z-dn.net/?f=2.86%5C%20rad%2Fsec%5E%7B2%7D)
I think it’s 8 hours. I’m sorry if I’m wrong.
I just did 400 divided by 50
Answer : 6.022• 10^23 atoms of potassium