The amount of radiant energy emitted by a surface is given by 4 q ? ?? ATs , where q represents the rate of thermal energy, per unit time, emitted by the surface in watts; ? is the emissivity of the surface 0<1 and is unitless; ? is the Stefan- Boltzman constant (? = 5.67 x 108); A represents the area of the surface in m2; and Ts is the surface temperature of the object expressed in kelvin. What is the appropriate unit for ? if the equation is to be homogenous in units?
What will be an ideal response?
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Answer the following statement true (T) or false (F)
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If a compressor is energized but shows no activity on the gauges at all, yet an ammeter shows a very low
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