Inner temperature of which are equals 37.9 degrees centigrade in a temperature. Look, child, uh, inner time preacher temperature off the time equals pretty 7.37 point nine degree centigrade. On radius off your drum equals, uh, radius are off. Your drum equals two point five millimeters. 2.5 millimeters equals 2.5. Multiply by 10 to the power minus three meters. Let's do party. Uh, they know they'd beat frequency equals five. Point it. It multiply by 10 to the power dim times. TT is the absolute temperature. Auntie, in this case is 37.9 degrees Celsius. We need to convert 37.923 cells into Calvin's. Therefore, t equals 37.9. Bliss to 73 gives us 303 110 point nine Calvin and therefore a big frequency. Uh, big frequency equals five point it. It multiplied by 10 to the power 10. Multiple. I V t auntie is 310.9 Calkins and therefore beak frequency equals one point to eat one point it multiply by 10 to the power. Uh, 13 horse. Now, let's do part B uh, part B. We know it. Uh, I already did. Or peanut equals E times, ese missive ity times A sigma sigma is a stiffened bolts man. Constant times area into, uh, t to the power for minus our t s to the power forties. Too tired t s is the temperature of surroundings in this case equals one sigma is a constant. It's equal to 5.67 multiplied by 10 to the power minus eight. What per meter square dot Care to the power four kids Kallen and very four power radiating or P net equals, um one multiplied by is one signifies 5.67 multiplied by 10 to the power minus eight. Multiply. The area is 2.5 multiplied by 10 to the power um, minus three whole square times 3.14 3.14 And since at vehicles by our square by his 3.14 and, uh, are in this case is 2.5 months of black who tended bar minus three. Multiply by, uh T to the power for well t to the power for is 310 points mine to the power for minus D A t s temperature of surrounding is to 93 uh, to the power for and so this we get being, uh, met equals, uh, being that equals 2.1. Multiply by 10 to the power minus three wants, and this can be written as 2.1. Many want No, let's do part. See, Marcie. Well, 2.1 million bought can be written is 2.1 multiplied by 10 to the power minus three. Jewell per second and e equals h f Nuccio put on equals a chip. It is 6.63 multiplied by 10 to the power minus 34. Multiply by F is 1.8 multiply by 10 to the power 13 and therefore e equals 11.934 Multiply might 10 to the power minus 21. Jules a number of photons per second emitted by the ear drum. So a number off for tones number of photons per second. Oh, bird second emitted by the ear drum emitted. Bye. Uh, the ear drum by the ear drum equals a 2.1 multiplied by 10 to the power minus three. Divided by 11.9 pre multiply by 10 to the power minus 21. And this gives us 0.176 multiplied by 10 to the power 18 four tones. Uh, per second and this can be further written is 1.8 month supply. We tend to the power are 17 foot owns 17 4 tones. We're second, so one point it multiplies by 10 to the power 17 4 dawns, uh, burn second.