Physics, 07.12.2019 02:31 lexieprochaskaaa
Light of a single wavelength is incident on a diffraction grating with 500 slits/mm. several bright fringes are observed on a screen behind the grating, including one at 45.9 ∘ and one next to it at 73.2∘.
what is the wavelength of the light?
Answers: 3
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The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.
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Physics, 22.06.2019 19:10
3. a worker pushes a 30.5 kg polished stone along a polished table with a force on bonin a straight line for 5.20 s after starting from rest. there is no friction between thestone and the table. at the end of the table. the stone is hooked to a cable with a lengthof 62.0 cm to rotate it to a rough table to store until they can be picked up. the roughtable has a coefficient of static friction 0.702 with the polished stone. remember that 8= 9.80 m/s2a) what is the speed of the stone when it is hooked to the cable? b) what is the tension in the cable while the stone is rotating? (there is still nofriction)c) how much force is needed to make the stone begin sliding from rest on therough table? ius = 0.70262.0 cm30.5 kg20.5 kg6= 0
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If frequency goes down, what happens to wavelength? does it get shorter or longer?
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Light of a single wavelength is incident on a diffraction grating with 500 slits/mm. several bright...
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