The value of E for a system that performs 120 kJ of work on its surroundings and gains 50kJ of heat is ___?

What are transitions between a liquid and gas called? identify which way they are transitioning

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Aperfume bottle is dropped in the corner of a room. the odor of the perfume can be detected on the other side of the room. which statement best describes this observation?