The Very Large Array radio telescope in New Mexico is an example of the use of which astronomical technique?
a. spectral analysis
b. photometry
c. interferometry
d. resolving power
e. cosmic analysis
c
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Homogeneity and isotropy, taken as assumptions regarding the structure and evolution of the universe, are known as:
A) Obler's Paradox. B) Hubble's Law. C) Wien's Law. D) the Cosmological Principle. E) the Grand Unified Theory.
Why do gamma ray telescopes have poor angular resolution?
What will be an ideal response?
The planetary model of the atom is a more detailed, or sophisticated, model than the simpler Greek model of the atom. The planetary model is useful because, unlike the Greek model, it can explain
A) the differences between the three states of matter. B) electrical phenomena such as electric current. C) the microscopic meaning of thermal energy. D) certain subtle "quantum" effects. E) gas pressure, including air pressure.
Compared with falling on a wooden floor, a wine glass may not break when it falls on a carpeted floor because of
A) lesser impulse in stopping. B) longer time to stop. C) both of these D) none of the above