Nuclear stability is related to the balance between A) ...

[Chelseaamend]

Nuclear stability is related to the balance between
 
  A) attracting and repelling forces in the nucleus.
  B) positive and negative ionic forces.
  C) both of these
  D) neither of these

Question 2

A 50.0-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 26.0 below the horizontal is applied to the box.
 
  What is the minimum coefficient of static friction between the box and the surface required for the box to remain stationary? A) 0.441
  B) 0.654
  C) 0.375
  D) 0.866
  E) 0.406

[jasonq]

Answer to Question 1

Answer: A

Answer to Question 2

C

[Chelseaamend]

Wow, this really help

[jamesnevil303]

Gracias!