A lightning flash is seen and then 19 seconds later the
A lightning flash is seen and then 1.9 seconds later the thunderclap is heard. How far away in miles did the lightning strike if sound travels 1087 feet per second and a mile is exactly 5280 feet?
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what mass of nacl must be dissolved in 750 grams of water to lower the freezing point to -400c the freezing point
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a lightning flash is seen and then 19 seconds later the thunderclap is heard how far away in miles did the lightning
1 suppose that the market of cellular phones an inferior good is in equilibrium then a decrease in consumers income
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