The mass of a dime is 2.268 g, its diameter is 17.91 mm, and its thickness is 1.350 mm. (a) Determine the radiant energy coming out from a dime per second at temperature 19.7 °C (You may enter your calculation using scientific notation.) (b) Determine the number of photons leaving the dime per second (Assume that all photons have the wavelength of the peak of the distribution for this estimate.) (You may enter your calculation using scientific notation.) (c) Determine the volume of air at standard temperature and pressure (20 °C, 1 atm) to have thermal energy equal to 1 second of radiation from the dime. (You may enter your calculation using scientific notation.) m³

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