What happened to the period of oscillation for this mass-spring system as the mass? Increased? Give a conceptual explanation (no equations) of why the period would do this. Think about how forces affect objects with larger masses.

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

Consider the particle-in-a-box problem in 1d. a particle with mass m is confined to move freely between two hard walls situated at x = 0 and x = l. the potential energy function is given as (a) describe the boundary conditions that must be satisfied by the wavefunctions ψ(x) (such as energy eigenfunctions). (b) solve the schr¨odinger’s equation and by using the boundary conditions of part (a) find all energy eigenfunctions, ψn(x), and the corresponding energies, en. (c) what are the allowed values of the quantum number n above? how did you decide on that? (d) what is the de broglie wavelength for the ground state? (e) sketch a plot of the lowest 3 levels’ wavefunctions (ψn(x) vs x). don’t forget to mark the positions of the walls on the graphs. (f) in a transition between the energy levels above, which transition produces the longest wavelength λ for the emitted photon? what is the corresponding wavele

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car