The sound level measured in a room by a person watching a movie on a home theater system varies from,40 dBduring a quiet part to

70 dB,
during a loud part. Approximately how many times louder is the latter sound? (enter only a number as your answer)

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

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value