A man drops a rock into a well.
(a) The man hears the sound of the splash 2.40s after he releasesthe rock from rest. The speed of sound in air (at the ambienttemperature) is 336 m/s. How far below the top of the well is thesurface of the water?
(b) What if the travel time for the sound is ignored, whatpercentage error is introduced when the depth of the well iscalculated?
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27 Nov 2019
A soccer player kicks a rock horizontally off a 35.7 m high cliffinto a pool of water. If the player hears the sound of the splash2.88 s later, what was the initial speed given to the rock? Assumethe speed of sound in air to be 343 m/s.
m/s
A soccer player kicks a rock horizontally off a 35.7 m high cliffinto a pool of water. If the player hears the sound of the splash2.88 s later, what was the initial speed given to the rock? Assumethe speed of sound in air to be 343 m/s.
m/s
Nestor RutherfordLv2
25 Mar 2019
