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Author Question: The mass of the Milky Way galaxy is a few ____. a. million solar masses b. hundreds of millions ... (Read 66 times)

urbanoutfitters

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on: Jul 27, 2018
The mass of the Milky Way galaxy is a few ____.
 
  a. million solar masses
 b. hundreds of millions of solar masses
  c. billion solar masses
 d. hundreds of billions of solar masses
  e. trillion solar masses

Question 2

The radius of Earth is 6,378 km. The force of gravity on a 1 kg ball at Earth's surface is 9.8 kg m/s2 . What is the force of gravity on this same ball when the ball is located 12,756 km from Earth's center? Hint: G = 6.67 10-11 m3/s2/kg
 
  a. 2.45 kg m/s2
  b. 4.9 kg m/s2
 c. 9.8 kg m/s2
 d. 19.6 kg m/s2
  e. 39.2 kg m/s2


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shoemake

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Reply #1 on: Jul 27, 2018
Answer to Question 1

d

Answer to Question 2

a


urbanoutfitters

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

Liamb2179

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

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