Physics, 03.08.2021 19:40, carolynhstevens
A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff at the far end of the lake. She hears the echo 3.7 ss after shouting. The speed of sound in air is 343 m/sm/s. Determine the length of the lake. A sailor strikes the side of his ship just below the waterline. He hears the echo of the sound reflected from the ocean floor directly below 3.2 ss later. How deep is the ocean at this point?
Answers: 1
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Ascientific blank must be testable and capable of being proven false?
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An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet. whats one advantage of using electromagnetic in devices
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Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47
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