The tungsten filament of a light bulb has an operating
The tungsten filament of a light bulb has an operating temperature of about 2 100 K. If the emitting area of the filament is 1.0 cm2, and its emissivity is 0.68, what is the power output of the light bulb? (? = 5.67 ? 10?8W/m2?K4)
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elisabeth goodman and lucy loh 2011 document 5 different models of organizational change which of these models would
assuming that the gas is ideal calculate the work required to compress ar gas from 10l to 1l the gas is initially at 25
andrews company has five employees participating in its defined benefit pension plan expected years of future service
many metals react with oxygen gas to form the metal oxide for example calcium reacts in the following manner 2 cas o2g
the tungsten filament of a light bulb has an operating temperature of about 2 100 k if the emitting area of the
during its first year of operations sugarsmooth inc produced 55000 jars of hand cream based on a formula containing 10
a solid object is made of two materials one material having density of 2 000 kgm3 and the other having density of 6 000
an unknown compound b has the melting point 1125-114 degrees c it is suspected that b is either x or a each compound
calculate the maximum number of moles and grams of h2s that can form when 195 g aluminum sulfide reacts with 106 g
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