What makes Iapetus different than most other Jovian satellites?
a. Its surface is so eroded that it has no distinguishing surface features.
b. It is not impacted by Saturn's tidal heating
c. It is perfectly spherical and highly reflective.
d. It has an old and heavily cratered surface.
e. It is asymmetrical and always faces backward to Saturn.
e
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Why do we call dark matter "dark"?
A) It blocks out the light of stars in a galaxy. B) It emits no radiation that we have been able to detect. C) It contains large amounts of dark-colored dust. D) It is dark brown or dark red in color.
Doppler radars at airports are capable of detecting dangerous, downward ______________
Fill in the blank(s) with correct word
True or False: A photon is reflected from a mirror. The photon carries momentum, and when it reflects off the mirror, it undergoes a change in momentum and exerts a force on the mirror
1.True 2.False
What is "Hawking radiation"?
What will be an ideal response?