If you walk 1.4 km north and then 4.8 km east, what are the magnitude and direction of your resultant displacement? a - magnitude: 5 km; direction: 16.3° east of north b - magnitude: 5 km; direction: 73.7° east of north c - magnitude: 4.6 km; direction: 73.7° east of north d - magnitude: 4.6 km; direction: 16.3° east of north

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference