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 123 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?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski
The Coriolis Force The Coriolis Force
Magnitude of Geologic Time Magnitude of Geologic Time
Determining Richter Scale Magnitude Determining Richter Scale Magnitude
The Small Intestine: A Huge Surface for Digestion & Absorption The Small Intestine: A Huge Surface for Digestion & Absorption
Question about Resultant of gravitational force? Question about Resultant of gravitational force?
Video: Oral Hygiene & Braces Animation

For a complete list of videos, visit our video library