Plot the fine structure energy levels of the ion l (諐 for the principle quantum number n = 3 and n = 2. use the term symbols to denote these levels. (15%) hint: the energy levels of the hydrogen-like atoms are described by 3 川 +1/2 4 (b) it is known that the selection rules of quantum transition are given by how many spectrum lines are there in the allowed transitions in (a)(5%) and how many different frequencies of these transitions would appear? (5%)

In which scenario is the least amount of work done on a crate? a force of 120 n moves it 25 m. a force of 115 n moves it 26 m. a force of 130 n moves it 22 m. a force of 125 n moves it 27 m.

Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. in essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. suppose a current of 480.ma is passed through an electroplating cell with an aqueous solution of agno3 in the cathode compartment for 46.0 seconds. calculate the mass of pure silver deposited on a metal object made into the cathode of the cell. round your answer to 3 significant digits. also, be sure your answer contains a unit symbol. ×10μ

What is the final velocity of the initial velocity of 25 and -50?