How many times longer than the duration of a nerve impulse is
the age of the Earth? (Use this table of magnitudes to calculate
your answer.) 
How many times longer than the duration of a nerve impulse is the age of the...
A
generation is about one-third of a lifetime. Approximately how many
generations have passed since the year 0 AD?
The answer is 10^2 generations. I don’t understand how they
got this answer.
We are viewing this in the order of magnitude
Length in Meters (m) Masses in Kilograms (kg) Time in Seconds (s) 10-15 m diameter of proton 10-14 m diameter of large nucleus 10-27 kg- mass of proton 10-10 m diameter of hydrogen atom 10-15 kg mass of bacterium...
PLEASE ANSWERS TO ALL QUESTIONS NEEDED, THANKS Problem 13.10(a) Purpose: This is to help familiarize you with characteristics of electromagnetic waves. Problem: An electromagnetic wave travels in the z direction. The electric field in the wave is given by the expression E(z,t) = E0cos(kz-ωt)y. (Bold letter are vectors.) At z = 0 and t = 0, in what direction does the magnetic field point? Hints: Remember that E crossed into B gives the direction of travel. Enter your answer,...