A star has a surface area of 6.99x1018 m2. How much power does it radiate if it has a surface temperature of 5274 K? Submit your answer in exponential form.
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A star has a surface area of 6.99x1018 m2. How much power does it
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- A blue supergiant star has a radius of 7.4 x 1010 m. The spherical surface behaves like a blackbody radiator. If the blue supergiant star radiates an energy rate of 1.29 × 1033 w, what would be its surface temperature (in °C)? The Stefan-Boltzmann constant is 5.67 × 10-8 w/(m2 . K4).The radius of a star is 6.95 x 10^8 m, and it's rate of radiation has been measured to be 5.32 x 10^26 W. Assuming that it is a perfect emitter, what is the temperature of the surface of this star? (sigma = 5.67 x 10^-8 W/m^2 . K^4)Our Sun has a surface temperature of about 5800 K. Find the emitted power per square meter of peak intensity for a similar star with 4600 K that emits thermal radiation. Express your answer in scientific notation and with three significant figures.
- A star has a surface area of 6.92*1018 m2 . How much power does it radiate if it has a surface temperature of 6,017k? Write in exponentialAn infrared satellite measures outgoing radiation that leaves Earth's surface through an atmospheric window. The observed spectral irradiance at a wavelength of 10 μm is 2.199×107 W m-2 m-1. What is the temperature of the surface? Give your answer in K.A blackbody radiator in the shape of a sphere has a surface area of 15 ^ 2 * m . if it has a temperature of 1200 K how much energy does it emit per second?
- 5.3 The surface temperature of the Sun is 5800 K about and measurements of the Sun's spectral distribution show that it radiates very nearly like a blackbody, deviating mainly at very short wavelengths. Assuming that the Sun radiates like an ideal blackbody, at what wavelength does the peak of the solar spectrum occur?Human body temperature is about 310 K (3.10 ✕ 102 K). At what wavelength (in nm) do humans radiate the most energy? In which part of the electromagnetic spectrum (gamma-ray, X-ray, UV, visible light, IR, microwave, or radio) do we emit?A distant star has a peak wavelength of 0.00000077. What is the temperature of that star?
- What is the surface temperature of Betelgeuse, a red giant star in the constellation of Orion, which radiates with a peak wavelength of about 970 nm? (b) Rigel, a bluish - white star in Orion, radiates with a peak wavelength of 145 nm. Find the temperature of Rigel’s surface.B2. A spherical star is detected by an astronaut in a spacecraft at a distance z of 1.5×10¹2 kilometers. The star can be regarded as a blackbody with a temperature of 11,300 K. The radius r of the star is 3.5×106 kilometers. (a) Calculate the radiant exitance and the radiant intensity of the star. (b) Calculate the irradiance that can be detected by the astronaut. (c) The photodetector used by the astronaut in the spacecraft has a responsivity of 120 kV/W and an photosensitive area of 0.5 mm². Calculate the output voltage of the detector in the detection of the star. CAMINS +II+ Figure B2The Temperature of a blackbody increases from 200°C to 400° C. What is the change in the frequency of the most intense spectral component of this blackbody? Af= Hz