The energy levels the electron can occupy in the h atom can be calculated using the energy level equation. a h atom with an electron in the n= 3.00 level emitted a photon with a wavelength of 656 nm. what is the value of the level n for the new energy?

What is magnetic flux? explain faraday's law of induction.

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.