Blackshadow123
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A mountaineer shouts for help Half a second later (0.5 she hears the echo How far away is the rock face which is reflecting her voice (take the speed of sound to be 330 m/s

Respuesta :

Answer:

82.5 metres

Explanation:

speed=330m|s

initial time taken =0.5÷2=0.25

distance=speed×time

330m|s × 0.25s = 82.5m

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