If a light-weight stable nucleus has 12 neutrons, the atomic mass ...

[charchew]

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

[dantucker]

Answer to Question 1

d

Answer to Question 2

C

[charchew]

Wow, this really help

[sultansheikh]

Thanks for the timely response, appreciate it