What spectral type of star that is still around formed most recently?
A) O
B) A
C) F
D) K
E) M
A
Physics & Space Science
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Suppose the surface temperature of the Sun were about 18,000 K, rather than 6,000 K. How would the thermal radiation spectrum of the Sun be different?
What will be an ideal response?
Physics & Space Science
When something is restricted to having only certain numerical values, it is said to be ________________
Fill in the blank(s) with correct word
Physics & Space Science
A source emits sound at a fixed constant frequency f.If the source moves away from you, the frequency you hear is
a. the same as f. b. higher than f. c. lower than f. d. unrelated to f.
Physics & Space Science
Explain how we can estimate the geological age of a planetary surface from its number of impact craters.
Fill in the blank(s) with the appropriate word(s).
Physics & Space Science