14. Olive accompanies her father to the park for an afternoon of fun. While
there, she hops on the swing and begins to swing back and forth once
every 4 seconds. The period of her swing is: *
0.25 Hz
0.25 seconds
4.0 Hz
4.0 seconds

Ingrid wrote the hypothesis below. if the temperature of a liquid increases, the density of the liquid decreases because the particles move farther apart. what are the variables in her hypothesis?

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.

Which lists the organs in the correct order as food passes from the mouth to anus?