Ayuda, Necesito explicación del procedimiento de las formulas Un móvil lleva una rapidez de 12m/seg. Cuando ha recorrido 170m su rapidez es de27m/seg. Calcular qué rapidez tendrá cuando haya recorrido 370m.

Un Perro lleva una rapidez de 30m/seg. Frena bruscamente deteniéndose en 50m. calcular que rapidez lleva 25m antes de detenerse.

Un tren parte del reposo y se mueve con una aceleración constante. en un momento dado
lleva una rapidez de 10m/seg y 20m más adelante su rapidez es de 16m/seg. Calcular: a) La aceleración; b) tiempo empleado en recorrer estos 20m; c) tiempo que emplea para alcanzar una rapidez de 25m/seg; d) distancia que recorrió desde que partió del reposo
hasta que adquirió la rapidez de 10m/seg.

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

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

Could someone me find the answer to this problem.