Physics, 12.10.2020 16:01 FlamingSky
Sound travels at a rate of 340 m/s in all directions through air. Matt rings a very loud bell at one location, and Steve hears it some time later at his location 450 meters to the south. How long did it take the sound to travel from the bell to Steve’s location?
Answers: 2
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Coal contains energy. a. light b. kinetic c. chemical d. mechanical
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The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? ab c d
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2. circled insects have mutations, or changes to their dna. how many of the offspring insects in this generation have mutations?
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