Which is an important step in how an electric motor uses magnetic force to produce motion?

What if? physicists often measure the momentum of subatomic particles moving near the speed of light in units of mev/c, where c is the speed of light, and 1 mev = 1.6 ✕ 10−13 kg · m2/s2. based on this, what are the units of momentum for a high-speed subatomic particle in terms of fundamental si units?

Which object is most likely represented by a dot?

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is