Radar bounced off of the Moon returns to Earth in 2.53 seconds. The velocity of the radio waves that comprise the radar beam is 3.00 x 108 m/sec. How far
is the one-way distance from Earth to the Moon? Think carefully about how far
the beam had to travel to go to the Moon and back again.

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

d) physical means can be used to separate the components of air.

i will answer your question if you answer mine