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Author Question: Three small masses are positioned at the following coordinates: 3.0 kg at (3.0 m, 2.0 m); 4.0 kg at ... (Read 75 times)

karlynnae

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on: Jul 29, 2018
Three small masses are positioned at the following coordinates: 3.0 kg at (3.0 m, 2.0 m); 4.0 kg at (0.0 m, -1.0 m); and 5.0 kg at (5.0 m, -7.0 m). What are the coordinates of the center of mass (or center of gravity) of this system?
 
  What will be an ideal response?

Question 2

In another solar system, a planet has a moon that is 4.0  105 m in diameter. Measurements reveal that this moon takes 3.0 x 105 s to make each orbit of diameter 1.8  108 m. What is the mass of the planet? (G = 6.67  10-11 N  m2/kg2 )
 
  A) 3.4  1024 kg B) 4.8  1024 kg C) 1.2  1024 kg D) 1.7  1024 kg E) 2.4  1024 kg


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thall411

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

(2.8 m, -2.8 m)

Answer to Question 2

B


karlynnae

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

mammy1697

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Reply 3 on: Yesterday
:D TYSM

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