please help ( wave and energy transfer related)

rubbertoe

1. The problem statement, all variables and given/known data

Water waves in a shallow dish are 6.0cm long At one point, the water oscillates up and down at a rate of 4.8 oscillations per second. What is the speed of the water waves?

2. Relevant equations
I am basicaly stuck becuse I dont know how to relate the oscillations to the formula. V=D/T


3. The attempt at a solution

hage567

Do you know the relationship between frequency and period?

QuantumCrash

Try v = f*lamda