The region of the electromagnetic spectrum with wavelengths just less than those in the ultraviolet region is the ______________ region
a. x-rays
b. radio waves
c. microwaves
d. infrared
e. gamma rays
a
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When looking for the radial velocity changes or "wobbles" detected due to Doppler shifts, which mass combination is most likely to be detected?
A) high mass star, high mass planet B) high mass star, low mass planet C) low mass star, high mass planet D) low mass star, low mass planet E) a high mass planet; the mass of the star is irrelevant
Which jovian planet should have the most extreme seasonal changes?
A) Uranus B) Saturn C) Neptune D) Jupiter
A light-year is a unit of _____
A) time B) luminosity C) distance D) mass
According to Newton's Law of Universal Gravitation, if the Moon were three times further from Earth, the force by Earth on the Moon would:
A) increase by a factor of 3. B) decrease by a factor of 3. C) increase by a factor of 9. D) decrease by a factor of 9. E) stay the same.