Can efficiency of machine be equal to 1? justify your answer

Which process is represented by the pv diagram? a. the isobaric process b. the isovolumetric process c. the isothermal process d. the adiabatic process

Smallest intensity of a stimulus that you can detect 50 percent of the time is

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.