Alex is then given a solid block of plastic. She tries standing it on three different edges: 1, il and ill, as shown in diagram
ii
lii
(b) Explain which, if any, of the positions, 1, li or ill, will be stable.

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

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.