Two asteroids are 75,000 m apart. one has a mass of 8 x 10^7 kg. if the force of gravity between them is 1.14 n, what is the mass of the other asteroid?

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.