Green light with a wavelength of 550 (nm) and a speed of 3 x 10^8 (m/s) in air travels through glass (n = 1.5). its speed in glass in (m/s) is : a. 1.5 x 10^8 b. 3 x 10^8 c. 4.5 x10^8 d. 6 x 10^8

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

J. j. thomson’s experiment disproved the theory that an atom

When electrons are added to the outermost shell of a carbon atom, it forms--an anion that has a larger anion that has a smaller cation that has a larger cation that has a smaller radius.