During a process in which 1556 foot-pounds of positive work is done by a closed stationary system, the internal energy decreases by 5 British thermal units. The heat transfer is most nearly:. 1. 10 Btu added.
2. 3 Btu extracted.
3. 3 Btu added.
4. 7 Btu extracted.
5. 7 Btu added.

Which of the following statements are true of solids? a.the particles do not vibrate. b.the particles are in a fixed location. c.they have strong intermolecular forces between the atoms or molecules. d.the particles have less kinetic energy than those of liquids or gases.

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?

Newtons view of arrangement of the universe. don't copy from anywhere.