Amicroscopic magnetic region composed of a group of atoms whose magnetic fields are aligned in a common direction is called a(n in most materials, when these groups are randomly distributed, the substance will show magnetism.

Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.