4. how much time would it take for an airplane to reach its destination if it traveled at an average speed of
780 kilometers/hour for a distance of 4,700 kilometers? what is the airplane's speed in miles/hour?
hint: show how you convert kilometers into miles for your calculation (1 mile = 1.6 km)
looking for which variable:
solution

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

Name the non metal condut electricity