the picture below shows a car turning counter clockwise at constant speed. select the vector that would indicate the car's instantaneous velocity at this point

In which of the following is positive work done by a person on a suitcase

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=

The law of reflection states that the angle of reflection is equal to the angle of