If the water surface is slightly oval, and the widest dimension is measured, is the calculated value of avogadro's number larger or smaller than if the dimension measured a round area? explain.

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

Compare and contrast physical changes with chemical changes.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line