What happens to the period of revolution for the planets as they move farther away in position from the sun

As shown in fig. p3.64, a closed, rigid tank fitted with a fine-wire electric resistor is filled with refrigerant 22, initially at 2108c, a quality of 80%, and a volume of 0.01 m3. a 12-volt battery provides a 5-amp current to the resistor for 5 minutes. if the final temperature of the refrigerant is 408c, determine the heat transfer, in kj, from the refrigerant.

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

Asystematic approach to problem solving is called a (an)