Consider the particle in a one-dimensional box (0sx s l). assume a term is added to the hamiltonian of the form: v(x)=-g sn(x) tx sketch the potential and the expected eigenfunction (small g). in the limit of small g, find the second order correction to the ground state energy

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.