Physics, 16.04.2020 20:03 natashawetzel5961
An enormous thunderstorm covers Dallas-Ft. Worth. Your best friend Clark is a storm chaser and heads to the center of the storm to take some readings while you stay dry at home. While Clark is at the center of the storm, he sees and hears lightning strike a tree that is 165 m from where he is standing. You are 123 km from the tree. How long does it take for the sound to reach Clark? Assume the speed of sound is 343 m/s.
Answers: 2
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What is the frequency of a light wave with a wavelength of 620nm
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(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present
Answers: 3
An enormous thunderstorm covers Dallas-Ft. Worth. Your best friend Clark is a storm chaser and heads...
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