The total energy required to run New York City for a whole year is roughly 7.5 x 10 17 J. If matter could be converted into pure energy, how many kilograms of matter
would be needed to run the whole city for a year?
1. 2.5 x 10^6 kg
2. 02.5 x 10^9 kg
3. 8.3 grams
4. 8.3 kg

What belongs in the areas marked x and y? x: the internal energy of a piston system increases as heat is added and rises to a cool area y: as thermal energy is added to a container, some of the energy is lost to the environment x: as thermal energy is added to a container, some of the energy is lost to the environment y: the internal energy of a piston system increases as heat is added and rises to a cool area x: a cold spoon placed in hot liquid gets warmer y: thermal energy is converted to light energy x: thermal energy is converted to light energy y: a cold spoon placed in hot liquid gets warmer