a tungsten filament of 1000-W light bulb radiates 2-W light. If the filament has surface area of 0.25mm^2 and emissivity of 0.95, find the filament temperature. (stefan boltzmann constant=5.67×10^-8 W/m^2K^4)​

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.