PersonWhoNeedsHelp

A proton, moving with a velocity of vi, collides elastically with another proton that is initially at rest. Assuming that after the collision the speed of the initially moving proton is 2.90 times the speed of the proton initially at rest, find the follow...

Jonathan is riding a bicycle and encounters a hill of height 6.70 m. At the base of the hill, he is traveling at 5.00 m/s. When he reaches the top of the hill, he is traveling at 3.00 m/s. Jonathan and his bicycle together have a mass of 77.6 kg. Ignore f...

Which of the following statements about a lunar eclipse is true? A: A lunar eclipse can occur when the moon is in any phase B: A lunar eclipse can only occur when there is a full moon C: Lunar eclipses occur in a matter om minutes D: Lunar eclipses create...

I'm still confused why the answer is -5100 Joules for part B when I got it wrong with -5095.2 Joules.

I do not know how to solve this. I tried.

I think it's B

Ok, thanks!!!