What types of changes effect the sun’s energy output?

a. cycles of solar flares and prominences heat and cool the layers below the sun’s surface.
b. as the sun rotates more energy is scattered to space and less is retained on the surface.
c. solar energy is affected by the core output of photons.
d. 11 year solar sunspot cycles change the amount of radiation given off by the sun.

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )