The temperature of a heat engine is 500k some of the heat generated by the engine flows to the surroundings which are at a temp of 125k

1-125/500)x100=efficiency

1-1/4)x100 =75pc

The answer is 75%

Explanation:

I got it right on edgeunity 2021

  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.