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 68 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?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

a pocket mouse, Perognathus sp., a small granivor a pocket mouse, Perognathus sp., a small granivor
Snout and mouth of sand tiger shark, showing protruding teeth and small eyes Snout and mouth of sand tiger shark, showing protruding teeth and small eyes
Do you know why ballpoint pens caps have that small hole? Do you know why ballpoint pens caps have that small hole?
How to impress a choosy female: Male fiddler crabs (top) wave their one enlarged claw to a attract a How to impress a choosy female: Male fiddler crabs (top) wave their one enlarged claw to a attract a
Muscle action in the small intestine Muscle action in the small intestine
Video: Bone Growth and Remodeling

For a complete list of videos, visit our video library