The ancient Romans knew about an earth material called lodestone. Lodestone is a rock that is a natural magnet. The Romans created a
monument in one of their temples that included a statue suspended in
midair

How might they have used lodestone to create the effect?
Thank you!

How many electrons in an atom could have these sets of quantum numbers? =3n=3 electronselectrons =4,ℓ=2n=4,ℓ=2 electronselectrons =6,ℓ=ℓ=−1n=6,ℓ=2,mℓ=−1

What you see with your eyes is a form of energy. a. light b. heat c. chemical d. electrical

In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.