An electron (q=-e, me=9.1×10^-31kg) is projected out along x-axis with an initial speed of 3.0×10^6m/s. it goes 45cm due to a uniform electric field region. find the magnitude and direction

Both independent and dependent clauses

If there's a small amount of friction between two surfaces, the result could be select all that applya. no movement b. heatc. a little bit of movementd. sliding around

Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?