gonsalex6328 gonsalex6328

20-02-2024
Physics

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A hiker shouts toward a vertical cliff 465 m away. The echo is heard 2.75 s later. What is the speed of sound of the hiker’s voice in air?
a) 170 m/s
b) 180 m/s
c) 190 m/s
d) 200 m/s

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