perfyme in a bottle has a density of 940kg/m^3 and its level =0.020m below the nozzle Calculate the minimum speed of air , so the liquid each the nozzle. the density of air is 1.29kg/m^3

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final