Question 9 of 10
2 points
the free-body diagram below shows the forces acting on a bicycle as the
rider pedals to the right. the vectors are not drawn to scale. the bicycle has a
weight of 1000 n and a pedaling force of 400 n. as it moves, it encounters
300 n of air resistance. what is the net force acting on the bicycle in the x-
direction?
air resistance
pedaling force

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