Author Question: If a light-weight stable nucleus has 12 neutrons, the atomic mass is expected to be about: a. 6 ... (Read 21 times)

charchew · **on:** Jul 28, 2018

If a light-weight stable nucleus has 12 neutrons, the atomic mass is expected to be about:
a. 6 b.12 c.18 d.24 e.36 amu.

Question 2

A 0.50-kg mass attached to the end of a string swings in a vertical circle (radius = 2.0 m). When the mass is at the lowest point on the circle, the speed of the mass is 12 m/s. What is the magnitude of the force of the string on the mass at this position?
a. 31 N
b. 36 N
c. 41 N
d. 46 N
e. 23 N