What it the correct equation for average velocity?
a. average velocity = speed / time
b. average velocity = time / displacement
c. average velocity = displacement / time
d. average velocity = time * displacement

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.

True or false: the revolution of the earth creates day and night as it rotates around the sun

Awave travels at a speed of 5.2 m/s. if the distance between crests is 0.40 m, what is the frequency of the wave? use f=v/wavelength a. 13 hz b. 2.1 hz c. 0.077 hz d. 5.6 hz