Amy wants to know whether or not an item will float when placed in a fluid. which of the comparisons below, when true, will mean that the item will float? a. the object is made of stone or metal, which always sink. b. the force of gravity is stronger than the buoyant force. c. the buoyant force is stronger than the force of gravity. d. the mass of the item is greater than its gravity.

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?