The Sun is a 6,000-K blackbody. At what characteristic wavelength does it radiate?

The wavelength of maximum energy radiated by a body is given by Wien's displacement law: Lambda = A / T. A is a constant, so as temperature increase the wavelength decreases. The sun, T=6000°K, emits primarily in the visible range, while the earth, T=300°K, emits primarily in the thermal IR range.

Explanation:

not too sure thinking it will always be directed towards the centre of the earth. could be wrong not sure

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .