A wave pulse on a horizontal string is represented by the function
`y(x, t) = (5.0)/(1.0 + (x - 2t)^(2))` (CGS units)
plot this function at `t = 0 , 2.5` and `5.0 s`.

Explanation

To plot the wave pulse function \( y(x, t) = \frac{5}{1 + (x - 2t)^2} \) at different time instances \( t = 0 \), \( t = 2.5 \), and \( t = 5.0 \) seconds, we will follow these steps:

### Step 1: Evaluate the function at \( t = 0 \)

1. Substitute \( t = 0 \) into the function:
\[ y(x, 0) = \frac{5}{1 + (x - 2 \cdot 0)^2} = \frac{5}{1 + x^2} \]
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