You are to make four straight-line moves over a flat desert floor, starting at the origin of an xy coordinate system and ending at the xy coordinates (−130 m, 22 m). The x component and y component of your moves are the following, respectively, in meters: (20 and 60), then (bx and −70.0), then (−20.0 and cy), then (−62.0 and −72.0).
(a) What is component bx?

(b) What is component cy?
(c) What is the the magnitude of the overall displacement?
(d) What is the angle of the overall displacement? *counterclockwise to the xaxis

True or false a high force means an object is moving fast100 points!

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

Which one of the following research methods can show cause and effect