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1.a small particle of interplanetary material is heated by friction from 400k to 4000k as i falls into the atomosphere of earth nd produces a meteor in our sky.if this object behaves like a perfect blackbody over this short time,how dost its emitted radiation changes as it is heated?its meitted intensity rases by a factor of 10000,while its peak wavelength becomes shoter by a factor of 10,from infrared to red visible light.
2.spectral lines observed in the granules on the Sun's surface near the center of the Sun's disk:are blueshifted near the center of the granule and redshifted near the edge of the granule.
3.in the movie,"predator" the alien is invisble to human being,this is because:the alien must have masked its emission somehow so as to appear invisible to humans.
1.a small particle of interplanetary material is heated by friction from 400k to 4000k as i falls into the atomosphere of earth nd produces a meteor in our sky.if this object behaves like a perfect blackbody over this short time,how dost its emitted radiation changes as it is heated?its meitted intensity rases by a factor of 10000,while its peak wavelength becomes shoter by a factor of 10,from infrared to red visible light.
2.spectral lines observed in the granules on the Sun's surface near the center of the Sun's disk:are blueshifted near the center of the granule and redshifted near the edge of the granule.
3.in the movie,"predator" the alien is invisble to human being,this is because:the alien must have masked its emission somehow so as to appear invisible to humans.
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