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Author Question: An iceberg weighing 1,000 tons is floating in the North Atlantic. Consider the gravitational forces ... (Read 21 times)

WWatsford

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on: Jul 28, 2018

An iceberg weighing 1,000 tons is floating in the North Atlantic. Consider the gravitational forces on the iceberg due to the Earth, the Moon, and the Sun. Put these gravitational forces in order of increasing magnitude.
   You do not need to do any calculations. Use reasoning, or simply guess.


  1.Earth < Moon < Sun
  2.Earth < Sun < Moon
  3.Moon < Sun < Earth
  4.Moon < Earth < Sun
  5.Sun < Moon < Earth
  6.Sun < Earth < Moon

Question 2

A ball is rolled up an incline so that it goes part-way up and then rolls back down. Which of the graphs below could represent its tangential component of acceleration vs. time, from the instant it is released until it returns to its starting point?
 


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nhea

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

3

Answer to Question 2

2


WWatsford

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

Kedrick2014

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Reply 3 on: Yesterday
Wow, this really help

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