Doubling only the amplitude of a vibrating mass-and-spring system ...

[mcmcdaniel]

Doubling only the amplitude of a vibrating mass-and-spring system produces what effect on the system's mechanical energy?
 
  A) produces no change
  B) increases the energy by a factor of three
  C) increases the energy by a factor of four
  D) increases the energy by a factor of two
  E) increases the energy by a factor of

Question 2

A 10. kg mass, hung onto a spring, causes the spring to stretch 2.0 cm. The spring constant is
 
  A) 5.0 N/cm
  B) 49 N/cm
  C) 0.20 N/cm
  D) 20. N/m
  E) 0.0020 N/cm

[heinisk01]

Answer to Question 1

C

Answer to Question 2

B