When a hunter fires a rifle, the hunter feels a force against her ...

[jake]

When a hunter fires a rifle, the hunter feels a force against her shoulder. Explain why.
 
  What will be an ideal response?

Question 2

A certain photon after being scattered from a free electron at rest moves at an angle of 120 with respect to the incident direction. If the wavelength of the incident photon is 0.591 nm, what is the wavelength of the scattered photon?
 
  A) 0.380 nm
  B) 0 nm
  C) 0.550 nm
  D) 0.591 nm
  E) 0.595 nm

[tennis14576]

Answer to Question 1

To accelerate the bullet, the rifle exerts a forward force against the bullet. The bullet, in turn exerts a backward force on the rifle, making it recoil. The hunter's shoulder exerts a forward force on the rifle to slow it down, and the rifle, in turn, exerts a backward force against the hunter's shoulder.

Answer to Question 2

E