List 3 characteristics of mechanical waves.

What can be found in the ionosphere

4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound

What is the amount of energy for a photon that has a 125 cm wavelength