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Author Question: Radioactive isotopes are useful for A) dating the ages of objects. B) tracing the path of ... (Read 106 times)

jlmhmf

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on: Jul 29, 2018
Radioactive isotopes are useful for
 
  A) dating the ages of objects.
  B) tracing the path of certain chemicals.
  C) cancer therapy.
  D) All of the above.
  E) None of the above.

Question 2

A 2.0-kg ball is moving with a constant speed of 5.0 m/s in a horizontal circle whose diameter is 1.0 m. What is the magnitude of the sum of the forces exerted on the ball?
 
  A) 0 N
  B) 20 N
  C) 40 N
  D) 50 N
  E) 100 N


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jasonq

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

D

Answer to Question 2

E


jlmhmf

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Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

coreycathey

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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