The numerical ratio of displacement to distance for a moving object is (a) always less than 1
(b) always equal to 1
(c) always more than 1
(d) equal or less than 1​

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant