a cars speed goes from 25m/s to 40m/s in 50 seconds. a) did it accelerate or decelerate. b) calculate the acceleration or deceleration

Uppose we consider the system of the three capacitors as a single "equivalent" capacitor. given the charges of the three individual capacitors calculated in the previous part, find the total charge qtot for this equivalent capacitor. express your answer in terms of v and c.

When a pair of 10-n forces act on a box of candy, the net force on the box is a 20 n. b about 14 n. c zero. d any of the above depending on the directions of forces.

Based on the diagram of the electric field lines around the two spherical charges, what are the signs of the left and right charge respectively?