Hello your question is incomplete hence I will give you a general answer on how A van de Graaff generator works
answer :
If the electrons falls through a PD of 150mV the electron will gain energy of 150MeV
Explanation:
when a Van de Graff generator is used to accelerate an electron through a PD ( potential difference ) of any value the particle ( electron ) the electron will gain energy ( eV ) which is is equivalent in value of the PD it accelerated through
hence if the electrons falls through a PD of 150mV the electron will gain energy of 150MeV
Impulse = Change in momentum. The ball was moving with a momentum of 0.45 * 22 = 9.9 The ball comes to rest in the receivers arm; this means the ball's final velocity = 0. So mv2 = 0.45 * 0 The magnitude of the impact is just the change in momentum. 9.9 - (0.45 * 0) = 9.9
