Part G Wavelength is the distance between the crests (tops) or the troughs (bottoms) of two waves that are next to each other. Now measure the wavelength: Click the pause button. Move the horizontal ruler so that its 0 centimeter mark is at the top of a wave. Measure the distance to the top of the next wave to find the wavelength. What's the wavelength of your wave?​

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.