A hydrogen atom in the 2P state will decay to the 1S state. The lifetime of the 2P state is approximately 2 nanoseconds. a. Find the uncertainty in the energy of the 2P state using the uncertainty principle. b. Since and uncertainty in the energy of the state will translate to an uncertainty in the energy of the photon emitted in a photo-transition, find the ratio of uncertainty of the energy of the photon to the energy of the photon in the transition 2P to 1S.

Si una estrella no tiene paralaje medible, ¿qué puedes inferir?

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.

1. true or false: minerals are inorganic. true false 2. inorganic means that something has never been found alive 3. halite is another name for and is a mineral with a cubic crystal pattern. table salt rock salt