1.
Twins who are 19.0 years of age leave the earth and travel to a distant planet 12.0 light-years away. Assume that the planet and earth are at rest with respect to each other. The twins depart at the same time on different spaceships. One twin travels at a speed of 0.899c, and the other twin travels at 0.561c.
(a) According to the theory of special relativity, what is the difference between their ages when they meet again at the earliest possible time?
A2 - A1 =
2.
How close would two stationary electrons have to be positioned so that their total mass is 3 times what it is when the electrons are very far apart?
1. Twins who are 19.0 years of age leave the earth and travel to a distant...
1. Planet J is 20 lightyears from Earth. Fred, who is 20 years old, boards his Spaceship from Earth and zips to planet J at 0.800c. Fred leaves behind his twin brother Tom. Upon reaching Planet J, Fred makes a "U-turn" and zips back to Earth. Ignore acceleration effect. (a) What are the biological ages of Tom and Fred by the time Fred reaches Planet J? (b) What are the biological ages of Tom and Fred by the time Fred...
1. Planet J is 20 lightyears from Earth. Fred, who is 20 years old, boards his Spaceship from Earth and zips to planet J at 0.800c. Fred leaves behind his twin brother Tom. Upon reaching Planet J, Fred makes a "U-turn" and zips back to Earth. Ignore acceleration effect. (a) What are the biological ages of Tom and Fred by the time Fred reaches Planet J? (b) What are the biological ages of Tom and Fred by the time Fred...