NOW PL State whether each of the following questions can or cannot be used to collect statistical information. Provide an explanation for each.
How many hours of homework do you do?
What were the different prices of the books at the bookstore?
Do your family members like to play soccer?

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?