Acargo container (in the shape of a rectangular solid) must have a volume of 480 cubic feet. the bottom will cost $5 per square foot to construct, and the sides and the top will cost $3 per square foot to construct. use lagrange multipliers to find the dimensions of the container of this size that has minimum cost.

What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k

Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.