What is one way to increase the amplitude of a wave in a medium?

A. by applying a vibration at the natural frequency of the medium

B. by increasing the velocity of the wave source

C. by moving the source of the wave away from the receptor, or observer

D. by decreasing the frequency of the wave source

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

An object in mechanical equilibrium is an object

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