Use the Hertzsprung-Russell diagram to determine which condition describes each star. Use the arrows to help you locate the stars.

List one type of erosion and describe how it happens?

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.

Asystematic approach to problem solving is called a (an)