Gustavo is 50kg and his brother Devon is 75kg. They are racing and Gustavo is moving faster at a velocity of 5m/s while his brother is moving 3m/s

Which of the following statements are true of solids? a.the particles do not vibrate. b.the particles are in a fixed location. c.they have strong intermolecular forces between the atoms or molecules. d.the particles have less kinetic energy than those of liquids or gases.

Photons with the highest energy have the longest period

Why does a smaller car get better gas mileage than a bigger one?