« previous next »

Author Question: How fast must a meter stick move, relative to the frame of the observer making the measurement, so ... (Read 61 times)

jayhills49

  • Hero Member
  • *****
  • Posts: 559
on: Jul 29, 2018
How fast must a meter stick move, relative to the frame of the observer making the measurement, so its length will be measured to be 0.60 m?
 
  A) 0.40c B) 0.90c C) 0.70c D) 0.80c E) 0.60c

Question 2

A proton, moving in a uniform magnetic field, moves in a circle perpendicular to the field lines and takes time T for each circle. If the proton's speed tripled, what would now be its time to go around each circle?
 
  A) 9T
  B) 3T
  C) T
  D) T/3
  E) T/9
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Leostella20

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Pulse oximetry with the sensor probe applied securely, flush with skin, making sure that both sensor Pulse oximetry with the sensor probe applied securely, flush with skin, making sure that both sensor
The Making of the Himalayas The Making of the Himalayas
Distance from Initial Change in Membrane Potential vs. Voltage Change Relative to Initial Change Distance from Initial Change in Membrane Potential vs. Voltage Change Relative to Initial Change
Peak flow meter. Peak flow meter.
Warming friction using the knuckles. The first two knuckles move back and forth on the skin to ... Warming friction using the knuckles. The first two knuckles move back and forth on the skin to ...
Side view of a jumping spider making a leap Side view of a jumping spider making a leap
Video: Decubitus Ulcer

For a complete list of videos, visit our video library