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

Author Question: Very early in his thinking about relativity, Einstein asked himself what a person would observe if ... (Read 35 times)

wrbasek0

  • Hero Member
  • *****
  • Posts: 560
Very early in his thinking about relativity, Einstein asked himself what a person would observe if he or she kept up with a lightbeam. In answer to this question, the theory of relativity states that
 
  A) this is not a valid question because a person cannot move as fast as a lightbeam.
  B) the light beam would stand still and so time would stand still.
  C) the observer would suddenly undergo a sex change.
  D) the observer own would continue to observe the same laws of physics.
  E) time would speed up without limit, and would pass at an infinite rate.

Question 2

A spinning ice skater on extremely smooth ice is able to control the rate at which she rotates by pulling in her arms. Which of the following statements are true about the skater during this process? (There could be more than one correct choice.)
 
  A) She is subject to a constant non-zero torque. B) Her kinetic energy remains constant.
  C) Her moment of inertia remains constant. D) Her angular momentum remains constant.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jennafosdick

  • Sr. Member
  • ****
  • Posts: 345
Answer to Question 1

A

Answer to Question 2

D




wrbasek0

  • Member
  • Posts: 560
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review


rleezy04

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Gracias!

 

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

For a complete list of videos, visit our video library