If 1.3 grams of air has a volume of 1000cm ^3, what is the density of air?
a) 1300g/cm^3
b) 1001.3 g/cm^3
c) 769.23 g/cm^3
d) 0.0013 g/cm^3

Abeverage can is made of 3004-h19 aluminum alloy (elastic modulus 69 gpa, tensile yield strength 285 mpa, density 2.72 g/cm^3). the dimensions on the can are approximated as a thin-walled cylinder with a height of 4.83 inches, diameter of 2.60 inches. empty the can has a mass of 14.2 g. determine: a. the wall thickness of the cylinder b. assuming a pinned-pinned condition what is the critical load? c. assuming a fixed-fixed condition what is the critical load?