Physics-Waves

What is the period of a 4 3 Hz wave on a slinky? 0.23 5 340 3 The only way to change the velocity of a wave is to 1 poir change the medium change the frequency 000 0 change the wavelength change the amplitude clear selection You find yourself in the bottom of a canyon and holler "Hello!" to the side of the canyon that is 421 meters away, You hear your echo 2 48 seconds later What is the speed of sound in the canyon? 1050 m/s 169 m/'s 211 m/s 338 m/s A swing goes through one com le once every y 2.1 seconds. What is the frequency of the swing? 0.21 Hz 4.2 Hz 0.48 HZ