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When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative
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Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.
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Physics, 23.06.2019 02:00
Elements that have one valence electron and are very reactive are called
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1. current is usually the flow of...
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