Determine linear speed of point on outer edge of disc
The disc is 12 cm in diameter and rotates at 100 revolutions per minute when being played. Determine linear speed in cm/min of a point on outer edge of disc.
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Plasma is a state of matter having of positive gaseous electrons and ions. A mercury atom could be stripped of its 80 electrons in the plasma state and therefore would exist as Hg80+. Determine the energy needed for the last ionization step.
Determine the pressure of the hydrogen in the burette? If the atmospheric pressure have 753 torr when the density of the Hg is13.6g/ml.
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At 26.0 Celsius a student collected hydrogen gas in a burette by displacing water. To equalize the pressure the burette could not be submerged deep adequate in a water bath.
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From the boat on river below the dam, angle of elevation to top of dam is 25 degrees. If dam is 2,039 feet above the level of river, how far is boat from base of the dam?
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