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Physics, 22.06.2019 16:50, Jstylez1789
Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1Ć105 wm-2k-1 and tā = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =
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Physics, 22.06.2019 18:00, championroof
Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?
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Physics, 22.06.2019 18:30, eguzmandpandoracom
How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters
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Physics, 22.06.2019 20:20, SoccerHalo
The temperature in gavin's oven is a sinusoidal function of time. gavin sets his oven so that it has a maximum temperature of 280Ā°f and a minimum temperature of 240Ā°. once the temperature hits 280Ā°, it takes 20 minutes before it is 280Ā° again. gavin's cake needs to be in the oven for 30 minutes at temperatures at or above 270Ā°. he puts the cake into the oven when it is at 260Ā° and rising. how long will gavin need to leave the cake in the oven? (round your answer to the nearest minute.)
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