(a) how far is the center of mass of the earth-moon system from the center of the earth? (appendix c gives the masses of the earth and the moon and the distance between the two.) m
(b) express the answer to (a) as a fraction of the earth's radius.'

Two thin 80.0- cm rods are oriented at right angles to each other. each rod has one end at the origin of the coordinates, and one of them extends along the x- axis while the other extends along the yaxis. the rod along the x- axis carries a charge of - 15.0 μ c distributed uniformly along its length, and the other rod carries 15.0 μ c uniformly over its length. find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

Apair of 10μf capacitors in a high-power laser are charged to 1.7 kv. a. what charge is stored in each capacitor? b. how much energy is stored in each capacitor?