An ambulance with its siren on is moving at a constant speed of 20 m The siren emits sound waves at a constant frequency. A stationary detector placed on the side
of the road records a frequency that is 50 Hz higher than the original frequency
Take the speed of sound in air as 340 ms

6.3 Calculate the wavelength of the sound emitted by the siren
Some of the sound waves are reflected from the detector back towards the
ambulance
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What happens in a global convection cell

Which example has gravitational potential energy? a. a horse slowing down from a run b. an apple about to fall from a tree branch c. a bicycle being pedaled down a horizontal path d. beaker sitting on the floor

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.