What is the application for reflection of waves?

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?