A climber throws a rope with a velocity of 8.7 m/s downward to another climber 9.8 m directly below. What is the magnitude of the rope's velocity when it reached the lower climber? Assume no air resistance.

Determine the maximum r-value of the polar equation r =3+3 cos 0

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?

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=