Will the Sun ever turn into a brown dwarf? Why or why not?
What will be an ideal response?
No, it is massive enough to ignite hydrogen fusion and reach the main sequence, which brown dwarfs cannot. Only objects of less than 8% of the Sun's mass are brown dwarfs.
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If an isotope of oxygen has 8 protons, 10 neutrons, and 8 electrons, it's mass number is...
In order to understand the concept of temperature it is necessary to understand
A. the zeroth law of thermodynamics. B. the first law of thermodynamics. C. the second law of thermodynamics. D. all of the above. E. only (b) and (c) above.
Refer to the accompanying narrative. What dependent variable was measured?
a. DDT b. temperature c. weight d. amount of food e. day length
In a Young's experiment, the paths from the slits to a point on the screen differ in length, causing destructive interference at the point. Which of the following path difference would cause this destructive interference?
a. 5?/2 b. 3?/4 c. 4? d. None of the above.