This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Two small balls, A and B, attract each other gravitationally with a force of magnitude F. If we now ... (Read 137 times)

robinn137

  • Hero Member
  • *****
  • Posts: 544
on: Jul 29, 2018
Two small balls, A and B, attract each other gravitationally with a force of magnitude F. If we now double both masses and the separation of the balls, what will now be the magnitude of the attractive force on each one?
 
  A) 16F
  B) 8F
  C) 4F
  D) F
  E) F/4

Question 2

A spaceship approaching an asteroid at a speed of 0.60c launches a rocket forward with a speed of 0.40c relative to the spaceship. At what speed is the rocket approaching the asteroid as measured by an astronaut on the asteroid?
 
  A) 0.81c
  B) 1.0c
  C) 0.76c
  D) 0.64c
  E) 0.96c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

blakeserpa

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

A


robinn137

  • Hero Member
  • *****
  • Posts: 544
Reply #2 on: Jul 29, 2018
Thanks


blakeserpa

  • Sr. Member
  • ****
  • Posts: 338
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Actions of regulatory transcription factors and small effector molecules Actions of regulatory transcription factors and small effector molecules
Small Copper Small Copper
Lestidae is a rather small family of cosmopolitan, large-sized, slender damselflies. They are of the Lestidae is a rather small family of cosmopolitan, large-sized, slender damselflies. They are of the
Small Town USA: Struggling to Survive Small Town USA: Struggling to Survive
A typical fuel-pressure regulator that has a spring that exerts 46 pounds of force against the ... A typical fuel-pressure regulator that has a spring that exerts 46 pounds of force against the ...
Absorption in the Small Intestine Absorption in the Small Intestine
Video: Photosynthesis and Van Helmont Experiment

For a complete list of videos, visit our video library