1. what is the study of the cosmos? the study of the cosmos includes what topics? 2. how do astronomers think the universe was created? 3. what evidence is there to support the big bang theory? 4. how is matter distributed within the universe? 5. what are galaxies? why is it important to study them? 1. how are stars important to the milky way? 2. how has the knowledge and perception of the universe changed over the past century? 3. what effect does dark energy have on the universe? 4. how is matter important to the universe? 5. what do scientists believe may be the fate of the universe? which theory do you feel is the better explanation of what may happen? why?

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?

Energy can be transformed from one form to another. the diagram shows one such process. which energy transformation is represented in the diagram? nuclear to thermal and radiant nuclear to electrical and chemical chemical to nuclear and radiant chemical to electrical and nuclear

People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or goggles and there is water in contact with their eyes. in a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina.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 2.05cm in front of the eye.)