In an experiment which the volume of dry sand is measured by the displacement of water, the sand was slightly wet to begin with. what effect would this have on the volume of air space that was calculated? on the percentage of the volume that was air space? this is from 8th grade introductory physical science book 6th edition.

Carbon 14 is a naturally occurring stable

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.

In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.