Chemistry, 30.06.2021 14:00 lanaiheart7
A porpoise sends out an ultrasonic burst and hears the echo off his favorite food in 0.13 seconds. How far away is the food source? Assume that sound travels at 1,530 m/sec in water
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Compare and contrast physical changes with chemical changes.
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Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease
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Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10Ć1010). if her stock has a good year and gains $3.20 billion (3.20Ć109) in value, what is her new net worth?
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A porpoise sends out an ultrasonic burst and hears the echo off his favorite food in 0.13 seconds. H...
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