Two gases—neon and air—are compressed in a closed system from P1 to P2 using a polytropic process with n = 1.5. requires lesser work to be compressed. The gas constants for neon and air are R = 0.4119 and 0.287 kJ/kg·K, respectively.

Acup of coffee sits on the dashboard of an automobile. the car goes around a sharp curve. even though you hold the cup still, coffee still splashes out. this can best be explained due to a) density. b) friction. c) gravity. d) inertia.

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

Newtons view of arrangement of the universe. don't copy from anywhere.