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Author Question: When two solid spheres of the same material and same radius r are in contact, the magnitude of the ... (Read 91 times)

craiczarry

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on: Jul 28, 2018
When two solid spheres of the same material and same radius r are in contact, the magnitude of the gravitational force each exerts on the other is directly proportional to
 a. r.
  b. r2.
  c. r3.
  d. r4.
  e. r6.

Question 2

Three galaxies, each of mass m = 4.0  1041 kg, lie in a plane at the corners of an equilateral triangle with sides of 5.0  1022 m length. The magnitude of the force the other two galaxies exert on each galaxy is
 a. 4.3  1027 N.
  b. 6.4  1027 N.
  c. 7.4  1027 N.
  d. 8.6  1027 N.
  e. 4.3  1028 N.


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Bison

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Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

c


craiczarry

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Reply #2 on: Jul 28, 2018
Thank you!


Bison

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Reply #3 on: Jul 28, 2018
Always glad to help...


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