Two cylindrical wires are made of the same material and have the same length. Part A If wire B is to have nine times the resistance of wire A, what must be the ratio of their radii, rB/rA? rB/rA =

If you mix chlorine lithium and nickel together which two elements would be the most reactive

Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=

The radius of an atom is closest in size to a