What is the momentum of a proton when it is moving with a speed ...

[Evvie72]

What is the momentum of a proton when it is moving with a speed of 0.60c? (mproton = 1.67  10-27 kg)
 
  A) 1.2  10-19 kg m/s
  B) 1.5  10-19 kg  m/s
  C) 3.0  10-19 kg  m/s
  D) 3.8  10-19 kg  m/s

Question 2

The wavelength of the light from a certain laser is where What is this wavelength in nanometers? (1 nm = 10-9m)
 
  A) 6.6  102 nm
  B) 6.6  103 nm
  C) 6.6  101 nm
  D) 6.6  104 nm

[bulacsom]

Answer to Question 1

D

Answer to Question 2

A