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Physics, 21.06.2019 23:00
Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's
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Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers total displacement?
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Physics, 22.06.2019 18:00
Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.
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A person yells across a canyon and hears an echo 2.5 seconds later. The air temperature is 21°C. How...
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