WebIndicate which species is oxidized and which is reduced. Verified answer. physics. A thin-walled, hollow sphere of mass M rolls without slipping down a ramp that is inclined at an angle \beta β to the horizontal. Find the magnitude of the friction force that the ramp exerts on the sphere. Verified answer. chemistry. Web31 jul. 2024 · These recommendations come in the form of lamp specifications (mercury, iron, gallium, etc.) or LED wavelength preferences (275, 365, 385, 395, or 405 nm). …
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WebDepending on the mercury vapor pressure during functioning, these lamps can be either low-pressure LP (254 nm) or medium-pressure MP (200–600 nm) . Although their germicidal effect has been demonstrated, they also present disadvantages such as: short lifetime; the possibility of mercury contamination if they break; heating; accumulated dirt … WebThe wavelengths of 19 spectral lines in the region 253–579 nm emitted by Hg pencil-type lamps were measured by Fourier-transform spectroscopy. Precise calibration of the … take out boxes michaels
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