Dani has 15.00 grams of water (c = 4.186 ) at 66°c. she adds 40.00 grams of water at 35°c. what is the final temperature of the liquids? express the answer to the hundredths place.

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

You are sitting on the beach and wondering about the properties of mechanical waves. describe them in terms of ocean waves.

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