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Author Question: A certain coin has a diameter of 21.21 mm, a thickness of 1.95 mm, and weighs 0.04905 N. What is its ... (Read 1141 times)

mydiamond

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on: Jul 29, 2018
A certain coin 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

Two compressible solids are formed into spheres of the same size. The bulk modulus of sphere two is twice as large as the bulk modulus of sphere one. You now increase the pressure on both spheres by the same amount.
 
  As a result of the increased pressure, how is the change in volume of sphere two (V2 ) related to the change in volume of sphere one (V1 )? A) V2 = 2V1
  B) V2 = 4V1
  C) vV2 = V1
  D) V2 = 1/2V1
  E) V2 = 1/4V1


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iceage

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

B

Answer to Question 2

D


mydiamond

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Reply #2 on: Jul 29, 2018
TY


iceage

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Reply #3 on: Jul 29, 2018
You're welcome


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