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faint, young sun paradox
Theories of stellar evolution denote that as stars mature over the main sequence, they steadily grow hotter & brighter; calculations recommend that at around the time of the creation of Earth, the Sun was roughly two-thirds the brightness that it is currently. But, there is no geological evidence over Earth (or on Mars) for the Sun being fainter in the past. Currently there is no apparent resolution for this paradox.
sir in books like hc verma i have seen if centre of mass remains at rest... then mx = mX...how?
can u plz solve a qus for me
What can justify the use of fiber optic? In the huge majority of tasks, using traditional implies, the amount of light used is far in excess to the quantity really required. Mo
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#questionwho is albert einstein..
A streamlined body given relative density ρ1 falls into air from a height h1 on surface of a liquid of relative density ρ2 where ρ2 > ρ1. find out the time of immersion of body int
if a 5-kg object experience a 10-n force for a 0.10-second, then what is momentum change of the object
What is a P-N junction? How does it behave under forward and reverse bias? Describe with the help of circuit diagrams.
Which gates are known as universal gates? Draw the circuit symbols of n-p-n and p-n-p transistor.
It consists of two semis circular plates. One is of quartz and other is glass plate joined together along the diameter. The quartz semi circular plate is a half wave plate whose
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