How much work would a child do while pulling a 12-kg wagon a distance of 4.3 m with a 22 n force?

Which situation will produce the greatest change of momentum

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?

Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.