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Author Question: Two ice skaters, one with a mass of 45 kg and the other with a mass of 60 kg, push off against one ... (Read 72 times)

Frost2351

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on: Jul 29, 2018
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


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sierramartinez

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Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

C


Frost2351

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Reply 2 on: Jul 29, 2018
Wow, this really help

kthug

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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