When you see a traffic light turn red, you apply the brakes until you come to a stop. if your initial speed was 14 m/s, and you were heading due north, what was your average velocity during braking?

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.