gonsalex6328 gonsalex6328 20-02-2024 Physics contestada 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
