Arocket ship travels 14,000 miles per hour. what is the rocket ship's velocity in m/s in correct scientific notation? (1 km = 0.62 mi) a. 6.3 × 10^3 m/s b. 0.627 × 10^3 m/s c. 630 × 10^6 m/s d. 6.3 × 10^5 m/s

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 4.50 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 awhat is the electric potential at point a due to q1 and q2? part bwhat is the electric potential at point b? part ca point charge q3 = -4.00 μc moves from point a to point b. how much work is done on q3 by the electric forces exerted by q1 and q2?