Consider a compact car that is being driven at 86 km/h.
The acceleration of gravity is 9.8 m/s2
From what height would the car have to be
dropped to have the same kinetic energy?
Answer in units of m.

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=