I honestly don't know. Everything I was given I put in the problem word for word. But it's ok anyways, I took my final today and this problem wasn't on there, but it is kind of annoying that I can't figure it out.
So i tried the formula you gave me (i was using the same one i thought but i got 50, i dont know what happen) and got an answer of 5.03. i dont understand your last part, the 20/gamma. since the 20 years elapsed, i'm dividing it by gamma= 5.03 and then do i add that to the astronauts original...
I tried using that formula but what do I insert for V? I put in 2 seconds and it didnt work, i tried working backwards, that didnt work either....what am i doing wrong?
1. A capacitor where C=1X10^-5 F and R= 1X10^6, there's 1000 electrons on the plate at t=0. How would I find the number of protons after 2 seconds?
2. half life= .7Tm, mean life=RC
[b]3. I put the R and C values in to get the mean life and got an answer of 7 seconds, and than to...
1. On his 25th birthday, the astronaut twin leaves on a long space journey at an average speed of v/c= 0.98. He returns after 20 earth-years have elapsed, to celebrate his earth-twin's 45th birthday. Compare their biological ages.
2. 1/ square root 1- v^2/c^2, My teacher is using v/c...