Physics, 15.10.2019 23:20 sccovell5601
Free fall: a rock is thrown directly upward from the edge of a flat roof of a building that is 56.3 meters tall. the rock misses the building on its way down, and is observed to strike the ground 4.00 seconds after being thrown. take the acceleration due to gravity to have magnitude 9.80 m/s2 and neglect any effects of air resistance. with what speed was the rock thrown?
Answers: 2
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Alightning strike consists of charge moving from a cloud to the ground . in one particular case, the electrons in a lightning strike are confined to travel within a radius of 1.5 m and to move at a speed of 5.0 x 10 m/s. if the density of electrons in the strike is 10'15 electrons/m what current is carried by the lightning ?
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What is the difference between electrically neutral objects and electrically charged objects
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Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.
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Free fall: a rock is thrown directly upward from the edge of a flat roof of a building that is 56.3...
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