A block slides down on a plane inclined at an angle of 53o above the horizontal with acceleration of 5m/s2. What is the coefficient of sliding friction between the block and the plane? A) 0.4
B) 0.3
C) 0.5
D) 0.5

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?