The formula 
expresses the relationship between Kelvin temperature and the amount of radiated energy. If a star is three times the temperature of the Sun, how many times more intense is the energy radiated from an equal-sized area of its surface? (Answer with a number only.
Definitions:
Ova
The female reproductive cells or eggs in animals and humans, which when fertilized by sperm, can develop into a new organism.
Embryo
The early stage of development in many multicellular organisms, in humans it refers to the phase of development from conception until the eighth week of gestation.
Lungs
Organs in the respiratory system responsible for gas exchange, taking in oxygen and expelling carbon dioxide from the bloodstream.
Digestive System
A complex series of organs and glands responsible for the digestion and absorption of nutrients, and the expulsion of waste.
Q13: Light-gathering power is proportional to the _
Q22: Newton's first law of motion was very
Q28: Why do scientists use the scientific method?
Q38: The instruments of the Mars Odyssey spacecraft
Q53: The size of a star's image in
Q55: Which statement best describes a theory?<br>A) A
Q57: The _ formula expresses the relationship of
Q58: How were the lunar maria formed?
Q66: Which best describes the surface of Callisto?<br>A)
Q67: If the orbital velocity of the Moon