Recent content by esb08

Thanks so much. You were very helpful, and I appreciate it

Homework Statement You wish to travel to another galaxy, which is 1,000,000 light years away. You'd like to be still alive when you get there. How fast must you travel? Given enough fuel, can you do this? Homework Equations t/t(proper)=gamma v=v'+u/1+(uv'/c^2) The Attempt at a...

okay. i understand that. but using the equation v= v'+u/1 +(uv'/c^2) where v' is the velocity of B relative to the earth, u is the velocity of A relative to B, and v is the velocity of A relative to the Earth then how would i switch around that equation to solve for u? wouldn't it be...

wait since the velocities are the same and in opposite directions does that mean the speed of A relative to B is 0??

Fun Relativity Question :) Homework Statement two spaceships, A and B, are moving relative to the Earth with speeds 4c/5 in opposite directions. What is the speed of the spaceship A according to an observer on B? According to an observer on B, how much does the separation of the spaceships...

Why in this experiment was it safe to assume that at some time of the year the Earth should be moving relative to the ether with a speed of at least 3x10^4 m/sec??