« previous next »

Author Question: A supertrain (rest-length = 100 m) travels at a speed of 0.950 c as it passes through a tunnel ... (Read 72 times)

09madisonrousseau09

  • Hero Member
  • *****
  • Posts: 559
on: Jul 28, 2018
A supertrain (rest-length = 100 m) travels at a speed of 0.950 c as it passes through a tunnel (rest-length 50.0 m). As seen by a trackside observer, is the train ever completely within the tunnel? If so, by how much?

Question 2

The period of a pendulum is 2.0 s in a stationary inertial frame of reference. What is its period when measured by an observer moving at a speed of 0.60 c with respect to the inertial frame of reference?


nicoleclaire22

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 28, 2018
Answer to Question 1

yes, by 18.8 meters

Answer to Question 2

2.5 s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Relationship between fruit radius and beak length in populations of native and introduced species of Relationship between fruit radius and beak length in populations of native and introduced species of
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 secondary waveform of a Ford 4.6 liter V-8, showing three sparks occurring at idle speed. A secondary waveform of a Ford 4.6 liter V-8, showing three sparks occurring at idle speed.
Cross section of the wrist showing tendons and nerves involved in carpal tunnel syndrome. Cross section of the wrist showing tendons and nerves involved in carpal tunnel syndrome.
Diagram of gastric ulceration by H. pylori. H. pylori travels through the stomach's mucus ... Diagram of gastric ulceration by H. pylori. H. pylori travels through the stomach's mucus ...
Use a graphical method to find the length of the loan to the nearest year Use a graphical method to find the length of the loan to the nearest year
Video: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library