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...