# Expressions for displacement and velocity of water molecules with time.

#### Hellbent

Hi,

I need help starting this problem, please.

Water waves of frequency, f, amplitude, A, and traveling with velocity, v, are transmitted through water of density, p(rho - Greek symbol). By considering each molecule of the water to be undergoing simple harmonic motion, write down expressions for displacement and velocity of the water molecules with time. Hence, deduce an expression for the power due to the water waves in terms of f, p(rho), A and v for a cross-section area of 1 m².

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