This topic contains a solution. Click here to go to the answer

Author Question: A merry-go-round spins freely when Janice moves quickly to the center along a radius of the ... (Read 52 times)

sam.t96

  • Hero Member
  • *****
  • Posts: 570
A merry-go-round spins freely when Janice moves quickly to the center along a radius of the merry-go-round. It is true to say that
 
  A)
 
  the moment of inertia of the system decreases and the angular speed increases.
  B)
 
  the moment of inertia of the system decreases and the angular speed decreases.
  C)
 
  the moment of inertia of the system decreases and the angular speed remains the same.
  D)
 
  the moment of inertia of the system increases and the angular speed increases.
  E)
 
  the moment of inertia of the system increases and the angular speed decreases.

Question 2

Two wave pulses pass each other on a string. The one traveling toward the right has a positive amplitude, while the one traveling toward the left has an equal amplitude in the negative direction.
 
  At the point that they occupy the same region of space at the same time A)
 
  constructive interference occurs.
  B)
 
  destructive interference occurs.
  C)
 
  a standing wave is produced.
  D)
 
  a traveling wave is produced.
  E)
 
  a wave pulse is produced.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

brbarasa

  • Sr. Member
  • ****
  • Posts: 308
Answer to Question 1

A

Answer to Question 2

B





 

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

For a complete list of videos, visit our video library