Assuming the classical force f = ee + ev times b acting on a charge e in electric and magnetic fields e and b, respectively, show that the magnetic force is small compared to the electric force when the charge has a velocity |v| < < c in a plane-wave electromagnetic field.

Prompta snowboarder stands at the top of a hill and decides to see if he can increase his speed on his next trip down the slope.describe one thing the snowboarder could do to incrlase his speed on the slope. explain why this would cause his speed toincrease relate one of newton's laws to this problem.

What is the most useful equation for electric power?

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?