a train is traveling 50.0 miles per hour. 1 mile is equal to 1.61 kilometers. How fast is the train moving in meters per second?

Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.

Which element is the least metallic between cadmium, silver, zinc, or iron?

How does a noncompetitive inhibitor reduce an enzyme’s activity?