Assume the following situation: Two magnets are isolated from two charges. The two magnetic poles are close to each other and the two electric charges are close to each other. What evidence is there that the potential energy stored in the fields of both the magnets and the charges will convert to kinetic energy directly? a)Both the magnets and the charges will become warmer the closer they are to each other.

b)Both the magnets and the charges will start to move, either away from each other or towards one another.

c) Both the magnets and the charges will experience a change in fields due to their presence to each other.

d)Both the magnets and the charges will not experience a net force from each other.

(serious answers only or you will be reported. Thanks to those who help).

How many neutrons does element x have if it’s stormy umber is 33 and it’s mass number is 95?

Edward tolman explained the results of his study by theorizing that the rats were learning about the maze during every trial but they a. were agitated because other groups were getting reinforcement b. could not remember how to demonstrate it without reinforcement c. were not motivated to demonstrate it without reinforcement d. seemed to be too lazy to actually work without reinforcement

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