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A large jet flying overhead is low enough so that a man on the ground can hear its engines. The man sees the jet before he hears the engines because
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A large jet flying overhead is low enough so that a man on the ground can hear its engines. The man sees the jet before he hears the engines because

User Carlos Valenzuela
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Because the speed of light through air is more than 800 thousand times faster than the speed of sound through air. So the sight of anything reached him well before the sound of it.
User Sissonb
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its C or D i think on usatestprep

User Nick Salloum
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