A power boat travels down the St. Lawrence River from Montreal to Quebec City at full throttle. The trip takes 3.0 h. The boat then heads back to Montreal, again at full throttle. This time the trip takes 15 h. With no gas left, the boat drifts with the current back to Quebec City. How long does the third trip take?

What challenges did you encounter during the circuit training program?

How are calculation for velocity and speed different

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