What happens when the molecules in a steel bar absorb energy, and start moving quickly?

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?

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?