What is the angular momentum of a 3.2 kg uniform, Ask an Expert

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Q. Monochromatic light of wavelength 659 nm falls on a slit. If the angle between the first bright fringes on either side of the central maximum is 18.5°, what is the slit width?

Q. What is the angular momentum of a 3.2 kg uniform cylindrical grinding wheel of radius 12 cm when rotating at 1400 rpm?

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