Reaction _ in the figure shown is an example of a fission reaction. (what number example is the correct example for a fission reaction)?

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement