Two ice skaters, one with a mass of 45 kg and the other with a ...

[Frost2351]

Two ice skaters, one with a mass of 45 kg and the other with a mass of 60 kg, push off against one another starting from a stationary position. After they have pushed off, the relative speed at which they separate is 0.600 m/s.
 
  What is the speed of the 60-kg skater? A) 0.343 m/s
  B) 0.257 m/s
  C) 0.375 m/s
  D) 0.750 m/s
  E) 0.225 m/s

Question 2

Which one of the following is the correct order of the electromagnetic spectrum from low to high frequencies?
 
  A) radio waves, infrared, microwaves, UV, visible, X-rays, gamma rays
  B) radio waves, UV, X-rays, microwaves, infrared, visible, gamma rays
  C) radio waves, microwaves, infrared, visible, UV, X-rays, gamma rays
  D) radio waves, microwaves, visible, X-rays, infrared, UV, gamma rays
  E) radio waves, infrared, X-rays, microwaves, UV, visible, gamma rays

[sierramartinez]

Answer to Question 1

B

Answer to Question 2

C

[Frost2351]

Excellent

[kishoreddi]

Gracias!