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Physics, 22.06.2019 09:10, mariap3504
The air that we breath is made mostly of which gaseous molecule
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Physics, 22.06.2019 10:30, Kathryn014
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
Answers: 2
How much heat is needed to raise the temperature by 10 degree of 5 kg of a substance of specific hea...
Geography, 31.08.2019 00:30