When using the scientist method, which step comes last?

State the right hand rule of the direction of magnetic field in a conductor carrying current

Ineed the answer to question 1 , i’m desperate

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.