The question is : tina's science teacher shines a lazer onto a screen .it is brighter than the white light from the laboratory lights. use your ideas about frequency to explain the difference between lazer light and white light?

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

In science and physics what is the standard unit of measure for speed?

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?