At a particular location in your house, three appliances make sound intensity levels of 73.1 dB, 75.8 dB, and 69.0 dB individually. What is the sound intensity level at that location when they are all running at the same time?

72.63 dB

Explanation:

This one was very easy. All we have to do is taking the average of all three levels. This happens because all the sounding intensities will balance themselves to a uniform level...

as technology advances, new experiments often expose problems in accepted theories. c

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-lavira: )

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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