Temporary magnets are made from soft iron true or false​

The slope of a good speed time indicates ? a. velocity b. acceleration c. direction d. speed

What is work? how much work is done to move an object 0 meters?

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.