Physical properties of matter can be observed without changing the identity of the substance . the phases of matter are physical properties. solids are different from liquids and gases primarily because

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?