Misc: how does Juliet's lover Romeo die?

Questions

In physics, mechanism by what energy is conveyed from one place to another in mechanically propagated waves without the transference of matter?

In physics, product of a force applied to a body & the displacement of the body in the direction of the applied force?

In popular usage, name denoting the acute disease known medically as aeroembolism & caused by rapid decrease of the atmospheric pressure?

In relation to computers, in printing, to line up in relation to a given point of reference, such as the margins of a page or the edges of a piece of paper?

In 'Romeo & Juliet', who says 'what must be shall be'?