Air enters a nozzle in steady flow at 280 kPa and 77 C with a velocity of 50 m/s. The air leaves the nozzle at 85 kPa and 320 m/s. The atmosphere which surrounds the nozzle is at 20 C. The nozzle is not well insulated; heat transfer losses from the nozzle are estimated as 0.35 kJ/kg. Using the air tables find the exit temperature of the air and the total entropy change for the process.

measure their densities same density, same sub

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.

a. vertically

explanation:

i tried it and took the test

if im wrong then we have different tests