A 0.50-kg box is attached to an ideal spring of spring constant ...

[tfester]

A 0.50-kg box is attached to an ideal spring of spring constant 20 N/m on a horizontal, frictionless floor.
 
  The box oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position.
  (a) What is the amplitude of vibration?
  (b) At what distance from the equilibrium position are the kinetic energy and the potential energy the same?

Question 2

If you add 1.33 MJ of thermal energy to 500 g of water at 50C in a sealed container, what is the final temperature of the steam?
 
  The latent heat of vaporization of water is 22.6  105 J/kg, the specific heat of steam is 2010 J/kg  K, and the specific heat of water is 4186 J/kg  K.
  A) 100C
  B) 112C
  C) 123C
  D) 147C
  E) 195C

[chreslie]

Answer to Question 1

(a) 0.24 m (b) 0.17 m

Answer to Question 2

E

[tfester]

Thanks

[chreslie]

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