Author Question: A 0.10-kg object moving initially with a velocity of +0.20 m/s makes an elastic head-on collision ... (Read 89 times)

kfurse · **on:** Jul 28, 2018

A 0.10-kg object moving initially with a velocity of +0.20 m/s makes an elastic head-on collision with a 0.15-kg object initially at rest. What percentage of the original kinetic energy is gained by the 0.15-kg object?
a. 4
c. 50
b. -4
d. 96

Question 2

If a conductor is in electrostatic equilibrium near an electrical charge:
a. the sum of all forces between the conductor and the charge must be zero.
b. the total charge on the conductor must be zero.
c. any charges on the conductor must be uniformly distributed. d. the electric field inside the conductor must be zero.