What is true of the velocity versus time graph of an object receiving an applied net force?
a. it will be a flat horizontal line. c. it will be a vertical line.
b. it will be a line with a positive slope only. d. it will be a line with either a positive or a negative slope.

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

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.

Why does gravity have a lesser than grater effect on higher altitudes?