Answer:
Solution
λ=v/n
Here, v=344 m s−1
n=22 MHz =22×106 Hz
λ=344/22×106=15.64×10−6m=15.64μm.
The answer is C, because the water molecules are evaporating and the salt molecules are staying the same.
The bowling ball will require more force to roll because it is more massive.
The distance decreases as the time increases