This law states that, in any process, energy is neither created nor destroyed. it can only be converted from one form to another.

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.

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

Which is an advantage of subdividing science into different areas?