*100 points* How does the bending of light depend on the two media and what is the mystery medium A? (This is a project where you have to find what medium A is, and use Snells law to calculate it)

Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?

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

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?