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Author Question: A 1938-nickel has a diameter of 21.21 mm, a thickness of 1.95 mm, and weighs 0.04905 N. What is its ... (Read 107 times)

P68T

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on: Jul 29, 2018
A 1938-nickel has a diameter of 21.21 mm, a thickness of 1.95 mm, and weighs 0.04905 N. What is its density?
 
  A)
 
  29.1  103 kg/m3
  B)
 
  7.26  103 kg/m3
  C)
 
  9.25  103 kg/m3
  D)
 
  2.31  103 kg/m3
  E)
 
  71.2  103 kg/m3

Question 2

The net force acting on an object is equal to the rate of change of its momentum.
 
  Indicate whether the statement is true or false


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Kimmy

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

B

Answer to Question 2

TRUE


P68T

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Reply 2 on: Jul 29, 2018
Gracias!

Jsherida

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Reply 3 on: Yesterday
Wow, this really help

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