From a flying aeroplane a body should be dropped in advance to hit the targer? why.

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a

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

Why do astronauts in the space shuttle weigh less?