4. A 1 m² blackbody is radiating at the rate of 2.0 W/m². If the temperature of the blackbody were doubled, at what rate would heat be radiated?
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A: Given equation is: 158.0308=216.8(0.065+0.00053(T-293.15))
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Q: The total power radiated per unit area from a blackbody is 78.0 MW/m2. Find (a) the temperature of…
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A: Here, since the question is not specific. So if we were to assume that the radiation discussed here…
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A: GivenEarth’s temperature T = 287 K
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Q: 1. What is meant by a 'black' body ? How can we make an almost ideal blackbody in the lab ?
A: What do you mean by a black body? How can we make an ideal blackbody in the lab?
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A: The given data are: T=287 KP=169 J/s Here, T and P represent the temperature and power.
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Q: A copper cylinder with a temperature of 362 K is found to emit 199 J of energy each second. If the…
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A: Let the tension in the string be (T) M1= 10 kg M2= 5 kg μk= 0.3
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A: Find the total energy of the sun emitted from the surface. E=σT4=5.67×10-8 W/m2100 K4=5.67 W/m2
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- A thin, square steel plate, 10 cm on a side, is heated in a blacksmith’s forge to 800OC If theemissivity is 0.60, what is the total rate of radiation of energy from the plate?The temperature of the earth’s core is equal to 37270C, what is its equivalent in Kelvin scale ?At what net rate does heat radiate from a 275m2 black roof on a night when the roof’s temperature is 30.0C and the surrounding temperature is 15.0C ? The emissivity of the roof is 0.900.
- Why does rubbing alcohol evaporate much more rapidly than water at STP (standard temperature and pressure)?What mass of water at 25.0C must be allowed to conic to thermal equilibrium with a 1.85-kg cube of aluminum initially at 1.50 102C to lower the temperature of the aluminum to 65.0C? Assume any water turned to steam subsequently recondenses.A metallic plate, 15 cm by 50 cm in size, is heated from 20⁰C to 220⁰C. If the plate is made of steel (? = 11 x 10-6/⁰C), what is its change in area?
- The air temperature was 72.60° F during a thunderstorm, and thunder was timed 7.65 s after lightning was seen. How many feet away was the lightning strike?A vertical glass tube of length L = 1.280 000 m is half filled with a liquid at 20.000 000C. How much will the height of the liquid column change when the tube and liquid are heated to 30.000 000C? Use coefficients aglass = 1.000 000* 10-5/K and bliquid = 4.000 000* 10-5/K.The intensity of solar radiation reaching the Earth is 1,340 W/m2. If the sun has a radius of 7.000 × 108 m, is a perfect radiator and is located 1.500 × 1011 m from the Earth, then what is the temperature of the sun?