Sound with frequency 1270 hz leaves a room through a doorway with a width of 1.12 m . at what minimum angle relative to the centerline perpendicular to the doorway will someone outside the room hear no sound? use 344 m/s for the speed of sound in air and assume that the source and listener are both far enough from the doorway for fraunhofer diffraction to apply. you can ignore effects of reflections.
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Physics, 22.06.2019 21:30
Aperson touches a large chunk of ice with their hand and remarks, “this is making me cold.” explain what this person is feeling. is the ice transferring “cold” to the person? is there a heat transfer occurring? explain.
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Physics, 22.06.2019 22:10
Astep up transformer has 250 turns on its primary and 500 turns on it secondary. when the primary is connected to a 200 v and the secondary is connected to a floodlight that draws 5a, what is the power output? show all of your work.
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Sound with frequency 1270 hz leaves a room through a doorway with a width of 1.12 m . at what minimu...
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