answer:
an opaque object is one that doesn't let light pass through it. instead, it reflects or absorbs the light that strikes it.
explanation:
in this case, we see the material because of the transmitted light. therefore, the wavelength of the transmitted light determines the color that the object appears.
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Answer:
nope dont agree with that i think it would b a lot harder to do on a mass scale like that
Explanation:
Only way to do that is if aliens with far superior technology wise came to earth and did it
Their atomic number?? (easy guess)
Answer:because each speaker has a large angle of of coverage (horizontal and vertical)
They place them apart to prevent their signals (sounds produced) from getting into each other's way as this may cause interference (which may be destructive.
Explanation: