Why are molecular lines more complex than elemental spectral lines?
A) Molecules have two or more atoms.
B) Molecules can vibrate and rotate as well.
C) Molecules are heavier than atoms.
D) Molecules are the basis of life.
E) Most of the universe is made of molecules, not individual atoms.
Answer: B) Molecules can vibrate and rotate as well.
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The Chandrasekhar limit is the largest ________ a white dwarf can have.
A. mass B. temperature C. speed D. wavelength
An 8 kg object moving with an initial velocity of 4 m/s comes to rest due to friction after it travels a horizontal distance of 10 m
If the initial speed of the object is doubled, what distance will it travel before coming to rest? Use g = 10 m/s2. A) 10 m B) 20 m C) 30 m D) 40 m E) 80 m
When a tensile stress is applied to a composite material with short fibers, the tensile stress in the matrix is transferred into the fibers by _________stress between the matrix and the fiber.
Fill in the blank(s) with the appropriate word(s).
With what objects do many of the millisecond pulsars appear to be associated, and what does this tell us about their age?
What will be an ideal response?