Physics

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Which form of electromagnetic radiation would be blocked in the stratosphere by Started by futuristic	1 Replies 671 Views	Aug 28, 2013 by curlz
Of all the forms of electromagnetic radiation, the one with the lowest frequency Started by futuristic	1 Replies 526 Views	Aug 28, 2013 by curlz
The Earth's ionosphere partially blocks which form of electromagnetic radiation? Started by futuristic	1 Replies 1,028 Views	Aug 28, 2013 by curlz
The two forms of electromagnetic radiation that penetrate the atmosphere best ar Started by futuristic	1 Replies 596 Views	Aug 28, 2013 by curlz
The hottest objects with temperatures in the millions of degrees Kelvin, give of Started by futuristic	1 Replies 1,105 Views	Aug 28, 2013 by curlz
X-ray telescopes are located in orbit around the Earth because A) X-ray telescop Started by futuristic	1 Replies 561 Views	Aug 28, 2013 by curlz
Electromagnetic radiation with a wavelength of 700 nm would be: A) X-rays. B) re Started by futuristic	1 Replies 587 Views	Aug 28, 2013 by curlz
The visible color of electromagnetic radiation that has the shortest wavelength Started by futuristic	1 Replies 619 Views	Aug 28, 2013 by curlz
Colors appear different to us because of their photons' different: A) speeds. B) Started by futuristic	1 Replies 1,007 Views	Aug 28, 2013 by curlz
There are no X-ray telescopes on Earth because A) they are too expensive to buil Started by futuristic	1 Replies 498 Views	Aug 28, 2013 by curlz
There are no radio telescopes in space because A) no one has built an antenna la Started by futuristic	1 Replies 622 Views	Aug 28, 2013 by curlz
The radiation our eyes are most sensitive to lies in the color A) red at 6563 An Started by futuristic	1 Replies 751 Views	Aug 28, 2013 by curlz
Which type of radiation can be observed well from Earth's surface? A) gamma ray Started by futuristic	1 Replies 812 Views	Aug 28, 2013 by curlz
What is true of a blackbody? A) It appears black to us, regardless of its temper Started by futuristic	1 Replies 731 Views	Aug 28, 2013 by curlz
According to Wein's Law, if the surface temperature is increased by a factor of Started by futuristic	1 Replies 558 Views	Aug 28, 2013 by curlz
Star A has a temperature 1/2 that of star B, but star A is 5 times bigger than s Started by futuristic	1 Replies 645 Views	Aug 28, 2013 by curlz
Star A and star B have the same temperature, but different luminosities. What ca Started by futuristic	1 Replies 535 Views	Aug 28, 2013 by curlz
Star A has a temperature 1/2 that of star B, but star A is 3 times bigger than s Started by futuristic	1 Replies 773 Views	Aug 28, 2013 by curlz
The total energy radiated by a blackbody depends on A) the fourth power of its Started by futuristic	1 Replies 710 Views	Aug 28, 2013 by curlz
Star A and star B have the same temperature, but star B is more luminous than st Started by futuristic	1 Replies 560 Views	Aug 28, 2013 by curlz
At which of these Kelvin temperatures would a blackbody radiate mostly at visibl Started by futuristic	1 Replies 584 Views	Aug 28, 2013 by curlz
The wavelength at which a blackbody radiates most depends on its A) radius. B) m Started by futuristic	1 Replies 484 Views	Aug 28, 2013 by curlz
Star A has a temperature 3 times that of star B. Both star A and star B are the Started by futuristic	1 Replies 1,190 Views	Aug 28, 2013 by curlz
Star A and star B have the same temperature, but star A is 5 times bigger than s Started by futuristic	1 Replies 714 Views	Aug 28, 2013 by curlz
Star A has a temperature 1/4 that of star B. Both star A and star B are the same Started by futuristic	1 Replies 1,008 Views	Aug 28, 2013 by curlz