« previous next »

Author Question: An astronaut traveling with a speed v = 0.90 c holds a meterstick in his hand. If he measures its ... (Read 80 times)

KWilfred

  • Hero Member
  • *****
  • Posts: 570
on: Jul 28, 2018
An astronaut traveling with a speed v = 0.90 c holds a meterstick in his hand. If he measures its length, he will obtain a value of
 a. 1.0 m
  b. 2.3 m
  c. 0.19 m
  d. 0.43 m
  e. 0.81 m

Question 2

A starship navigator measures the distance between the Earth and the sun. If the ship is moving at a speed of 0.90 c, instead of obtaining 93 million miles, the navigator measures a distance (in millions of miles) of
 a. 41.
  b. 30.
  c. 80.
  d. 215.
  e. 90.


braelync

  • Sr. Member
  • ****
  • Posts: 350
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Hand Anatomy Hand Anatomy
The Rubber Hand Illusion The Rubber Hand Illusion
In this photo opportunity, Phillies manager Ben Chapman refused to shake Jackie Robinson’s hand. ... In this photo opportunity, Phillies manager Ben Chapman refused to shake Jackie Robinson’s hand. ...
The initial timing is where the spark plug fires at idle speed. The computer then advances the ... The initial timing is where the spark plug fires at idle speed. The computer then advances the ...
(a) A turbidometry detector measures laser light directly across from the light source. The sample, ... (a) A turbidometry detector measures laser light directly across from the light source. The sample, ...
Different hand positions and working surfaces for massage applications on large muscles. A. Flat ... Different hand positions and working surfaces for massage applications on large muscles. A. Flat ...
Video: Power Supply Polyacrylamide Gel Protein Sample

For a complete list of videos, visit our video library