11. (a)What downward force is acting on you when you go down a waterslide? (b)What type of friction is present? (c)If the waterslide were dry explain what type of friction in would be and (d)how that
changes your speed? (4 points)

Would corn syrup, molasses, or pancake syrup make a good lubricant in a car engine? explain your answer.

A20 cm long spring is attached to a wall. the spring stretches to a length of 22 cm when you pull on it with a force of 100 n. what is the spring constant

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=