Answer:
So the wavelength of light is 1015.7 nm
Explanation:
From Wein's displacement law, we can write the following formula;
here,
is the wavelength of maximum radiation in meters
T is the absolute temperature (in Kelvin) for maximum radiation
K is the constant has a value of 
Given here, T = 2853 K
And we need to find 
Putting the values in formula



Answer:
I am not entirely sure about this one. But I believe that the "Emancipation Manifesto" signed by Czar Alexander II gave serfs land, or at least gave them the freedom to do what they wanted, like buying that said land.
No freedom of religion, or elections was yet to be had in Russia.
Explanation:
2 definitions:
an artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication.
a celestial body orbiting the earth or another planet
Radical Leadership : Gradpoint.
Has a lower standard of living