What is the total resistance of a 3-ohm resistor and a 6-ohm resistor in parallel?

Which type of microscope would allow the viewer to see ribosomes inside a cell?

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.

Positive ions differ from neutral atoms in that