What is the potential energy at point e when the total mechanical energy is 4900 for the 100 kg moving at 2 m/ s

B. 4700 J

Explanation:

Given the following data;

Mechanical energy = 4900J

Mass = 100kg

Velocity = 2m/s

To find the potential energy;

Mechanical energy = kinetic energy + potential energy

First of all, we would determine the kinetic energy of the object;

K.E = ½mv²

K.E = ½*100*2²

K.E = 50*4

K.E = 200 J

Substituting into the equation, we have;

4900 = 200 + P.E

P.E = 4900 - 200

P.E = 4700 Joules

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

total distance/total time

(85 + 82)/(5+3)

167/8

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