how could you determine the amplitude of this...

# Explanation: ## Step1: Recall amplitude definition Amplitude is the maximum displacement from equilibrium. ## Step2: Identify equilibrium and max - displacement In a wave, the still - water level is the equilibrium. The maximum displacement from the still - water level to the crest (or trough) is the amplitude. So, measure the vertical distance from the still - water level to the crest or from the still - water level to the trough. # Answer: Measure the vertical distance from the still - water level to the crest or from the still - water level to the trough.