A clarinetist, setting out for a performance, grabs his 3.130 kg 3.130 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 38.38 N. 38.38 N. Find the case's vertical acceleration. Indicate an upward acceleration as positive and a downward one as negative.

Apossible explanation for a set of facts that can be tested by further investigation is called

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

An charge with mass m and charge q is emitted from the origin, (x, y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.