Question

"Whereas the velocity of a wind-blown wave can be calculated if you know its wavelength, what piece of information do you need to know to calculate the velocity of a tsunami?"

Answer 1

Answer: Frequency

Explanation: The velocity of a wave is the product of wavelength and frequency. That is to say:

`v=\lambda\cdot{f}`

Hence, the frequency associated with the tsunami is needed to calculate the velocity.