During an adiabatic process in a closed system, what happens to a gas when the gas expands?

its temperature increases.
its temperature decreases.
its molecules gain mass.
its molecules lose mass.

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?

What are the necessary conditions for fusion?