HELP ME PLS I AM GOING TO FAIL

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.

How are calculation for velocity and speed different

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?