A rocket is moving at a speed of 220 `ms^(-1)` towards a stationary target. While moving, it emits a wave of frequency 500 Hz. What is the frequency of the sound as detected by the target?

Explanation

To solve the problem of finding the frequency of sound detected by a stationary target from a moving rocket, we can use the Doppler effect formula. Here’s a step-by-step solution:

### Step 1: Identify the given values
- Speed of the rocket (source), \( v_s = 220 \, \text{m/s} \) (towards the observer)
- Frequency of the sound emitted by the rocket, \( f = 500 \, \text{Hz} \)
- Speed of sound in air, \( v = 330 \, \text{m/s} \)
- Speed of the observer, \( v_o = 0 \, \text{m/s} \) (since the target is stationary)

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