The men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s. at this rate, how many seconds would it take to swim 0.8500.850 miles (1 mi = 1609 m)?

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