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Physics, 22.06.2019 20:30
Ascientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surface, making it look rainbow-like (an effect known as iridescence). she aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). the index of refraction of water is 1.3
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Auniform electric field exists in the region between two oppositely charged plane parallel plates separated by a distance of 1.60 cm . a proton is released from rest at the surface of the positively charged plate and strikes the surface of the opposite plate in a time interval of 3.20Ă—10-6 s. 1-find the magnitude of the electric field. use 1.60Ă—10-19c for the magnitude of the charge on an electron and 1.67Ă—10-27kg for the mass of a proton 2-find the speed of the proton when it strikes the negatively charged plate
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The solar system is made up of eight planets, numerous comets, asteroids and moons, and the sun. the force that holds all of these objects together is
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