anna4060

12.11.2020 • 

Physics

The figure shows an overhead view of a ring that can rotate about its center like a merry-go-round. It’s outer edge radius R_2 is 0.6 m, its inner radius R_1 is half of R_2, its mass M is 7.2kg, and mass of crossbars is negligible. It initially rotates at an angular speed of 7.4 rad/s with a cat of mass m=M/4 on its outer edge, at radius R_2. By how much does the cat increase the kinetic energy of the cat-ring system if the cat crawls to the inner edge, at radius R_1?

Ответ:

alexisfhenders

24.07.2021

Physics

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So, the correct answer is the strong nuclear force. It actually pulls together nuetrons and protons that are in the nucleus. At very tiny distances only, like those inside the nucleus, so, this strong force succeded in dealing with the electromagnetic force, and it basically stops the electrical repulsion of protons from blowing apart the nucleus.

Mark as brainlies please, I need a few more :D

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