What is the speed of a car that traveled total of 75 km in 2 hours? *

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

What are two different ways you could find the value of a? explain these methods.

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