A wave travelling along a string is given by `y(x, t) = 20 sin 2pi (t - 0.003 x)` x, y are in cm and t is in seconds.
Find the amplitude, frequency, wavelength and velocity of the wave.

Explanation

To solve the problem, we will analyze the wave equation given and extract the required parameters step by step.

The wave equation is given as:
\[ y(x, t) = 20 \sin(2\pi(t - 0.003x)) \]

### Step 1: Identify the Amplitude
The amplitude \( A \) of a wave is the coefficient in front of the sine function in the wave equation.

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