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- (1b). The Earth can be considered to be a perfect black body radiator at a temperature of 140°F. Radius of Earth is 6380 km. Calculate the total power radiated from the Earth in Watts (W)Spaceman Spiff is flying his spacecraft near a neutron star. Assuming the star is located at (0, 0, O) Spiff is able to determine the temperature at a point (x, y, z) is given by T (x, y, z) = (5.0 x 106) e-3x2–3y2–322 Answer these questions to help Spiff out: Spiff is at the location (0,0,-100) and his ship is overheating! What is the absolute worst direction for him to fly in? Spiff's control panel malfunctions and leaves him barreling in a direction parallel to v = (2, -4,5) . Assuming Spiff is at the position (0,0,-100) at what rate will the temperature change as he travels in this direction? As always make sure you submit clear, complete, and detailed solutions to each question.A spherical black body with a radius of 12 cm radiates 450 W power at 500 K. If the radius were halved and the temperature doubled, the power radiated in watt would be (a) 225 (b) 450 (c) 900 (d) 1800
- The wavelength of maximum solar emission is observed to be approximately 0.475 μm. What is the surface temperature of the sun (assumed as blackbody)?A diffuse emitter at 1500 K was found to have a spectral hemispherical emissivity of 0.4 for a wavelength ranging between 2 and 4 micro meters. This spectral hemispherical emissivity is null for any other wavelength. Find the hemispherical emissive power for this body 5:45 PMThe sun can be modeled as a blackbody emitting at a temperature of 5800.0 Kelvin. Determine the following: a) The blackbody emissive power of the sun. b) The fraction of the sun’s emission in the visible range (0.40μm – 0.70μm).
- (1a). Figure shows a copper rod AB being heated at one end. Explain how the heat transfers from A to B. What is the name of this method? copper rod B Bunsen burner (1b). The Earth can be considered to be a perfect black body radiator at a temperature of 112 F. Radius of Earth is 6390 km. Calculate the total power radiated from the Earth in Watts (W)Nuclear fusion - the energy source of the Sun, hydrogen bombs, and fusion reactors - occurs much more readily when the average kinetic energy of the nuclei is high.a) Suppose you want the nuclei in your fusion experiment to have average kinetic energies of 6.85 × 10-14 J. What temperature, in kelvins, is needed for that?18:30 0.06 KB/S AIATS for Two Year Me... 41 /180 02:57 Mark for Review hr min Two spheres of same material have radii 1 m and 2 m are at temperature of 2000 K and 1000 K respectively. The ratio of energy radiated in unit time is 8. 32 Clear Response
- Nuclear fusion - the energy source of the Sun, hydrogen bombs, and fusion reactors - occurs much more readily when the average kinetic energy of the nuclei is high. a) Suppose you want the nuclei in your fusion experiment to have average kinetic energies of 5.65 × 10-14 J. What temperature, in kelvins, is needed for that?Much of the gas near the Sun is atomic hydrogen. Its temperature would have to be 1.50 107 K for the average speed vrms to equal the escape speed of the Sun. What is that speed? The atomic mass of hydrogen is 1.008 10-3 kg/mol.1.) Create a scatter chart with all the data