Answer:
a.
W
Explanation:
= temperature of the surface of sun = 5800 K
= Radius of the Sun = 7 x 10⁸ m
= Surface area of the Sun
Surface area of the sun is given as

= Emissivity = 1
= Stefan's constant = 5.67 x 10⁻⁸ Wm⁻²K⁻⁴
Using Stefan's law, Power output of the sun is given as

B.) <span>The range of all electromagnetic radiation is known as the "Electromagnetic Spectrum"
Hope this helps!
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Answer:
Babies often struggle to go to sleep sometimes warm milk and sooting sounds help babies sleep
Explanation: