Distinguish between the nature of water wave and sound waves ​

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

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.

Which of the following forces require physical contact? tension air resistance friction magnetic force applied force