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Physics, 02.02.2020 20:00 elizabethburkha
Where is over 95% of incoming ultraviolet radiation absorbed? . a.. the stratosphere. b.. the mesosphere. c.. the troposphere. d.. the thermosphere.
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After a car's engine has been running for a while, if you stand near the car's engine you can often feel heat coming from the engine as a result of a. radiation b. convection c. conduction
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Physics, 22.06.2019 05:10
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
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Where is over 95% of incoming ultraviolet radiation absorbed? . a.. the stratosphere. b.. the mesosp...
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