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Author Question: Three small objects are positioned as follows: the 2.0-kg object at (0.0 m, 0.0 m), the 2.0-kg ... (Read 63 times)

lilldybug07

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on: Jul 29, 2018
Three small objects are positioned as follows: the 2.0-kg object at (0.0 m, 0.0 m), the 2.0-kg object at (2.0 m, 0.0 m), and the 4.0-kg object at (2.0 m, 1.0 m). Determine the coordinates of the center of mass of this system.
 
  A) (0.50 m, 1.5 m)
  B) (1.5 m, 0.50 m)
  C) (2.5 m, 1.5 m)
  D) (2.5 m, 0.50 m)

Question 2

The mass of the Moon is 7.4  1022 kg, its radius is 1.74  103 km, and it has no atmosphere. What is the acceleration due to gravity at the surface of the Moon? (G = 6.67  10-11 N  m2/kg2 )
 
  A) 0.80 m/s2
  B) 9.8 m/s2
  C) 4.9 m/s2
  D) 1.6 m/s2
  E) 2.8  106 m/s2


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jaaaaaaa

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

B

Answer to Question 2

D


lilldybug07

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Reply 2 on: Jul 29, 2018
Gracias!

lkanara2

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Reply 3 on: Yesterday
:D TYSM

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