Physics, 08.08.2019 22:30 xczapien782
Astronomers recently detected light emitted by a supernova that was originally observed in 1572, just reaching earth now. this light was reflected off a dust cloud; astronomers call such a reflected light a “light echo” (just like reflected sound is called an echo). how would you expect the spectrum of the light echo to compare to that of the original supernova?
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Physics, 22.06.2019 02:50
Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.
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Physics, 22.06.2019 16:00
Frank just graduated from eighth grade. assuming exactly four years from now he will graduate from high school how many seconds does he have until his high school graduation
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Physics, 22.06.2019 17:50
Convection occurs when thermal energy is transferred by the movement of
Answers: 1
Astronomers recently detected light emitted by a supernova that was originally observed in 1572, jus...
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