Asphere has surface area 1.25 m2, emissivity 1.0, and temperature 100.0°c. what is the rate at which it radiates heat into empty space? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ∙ k4). a.) 9.9 mw b.) 3.7 w c.) 7.1 w d.) 1.4 kw

The total power emitted by an object via radiation is:

where:
A is the surface of the object (in our problem, 
is the emissivity of the object (in our problem, )
is the Stefan-Boltzmann constant
T is the absolute temperature of the object, which in our case is 

Substituting these values, we find the power emitted by radiation:

So, the correct answer is D.

The center is basically the heart of it

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.