1) What is the gravitational force between two identical bodies with a mass of 2.0 x 10 4 kg each if they are 2.0 m apart?     5.7 x 10–2 N     1.3 x 10–2 N     6.7 x 10–3 N     1.2 x 10–7 N

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter7: Gravity
Section: Chapter Questions
Problem 25PQ
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Please answer the question and subquestions completely! This is one whole question which has subquestions! According to the official Bartleby guidelines, each question can have up to two subquestions! Thank you!

 

1)

What is the gravitational force between two identical bodies with a mass of 2.0 x 10 4 kg each if they are 2.0 m apart?
   
5.7 x 10–2 N
   
1.3 x 10–2 N
   
6.7 x 10–3 N
   
1.2 x 10–7 N
A)
The value of g at an altitude above Earth equal to one Earth diameter is:
   
9.8 m/s2
   
4.9 m/s2
   
2.5 m/s2
   
1.9 m/s2
   
1.1 m/s2
B)
The escape velocity at the surface of Earth is 11 km/s. What is the escape velocity at the surface of a planet whose radius is 4 times and whose mass is 100 times that of Earth?
   
1.60 km/s
   
8 km/s
   
55 km/s
   
200 km/s
   
none of the above




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