Why did scientists agree to use one system of measurement? a) so they could develop theories more easily

b) so they could record their data accurately

c) so they could benefit from using the most accurate measurement system

d) so they could readily interpret one another's measurements

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.

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation

Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.