How many neutrons are in a 
nucleus?
A. 79
B. 179
C. 118
D. Some other number (specify)
C. 118
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YSOs are in hydrostatic equilibrium
a. True b. False Indicate whether the statement is true or false
If you are standing on the street listening to the siren of an ambulance as it is moving away from you, which of the following is TRUE?
A) the pitch/frequency of the siren seems lower than it really is B) the siren sounds louder than it really is C) none of the above D) the pitch/frequency of the sound is identical to what it would have been if the ambulance were not moving E) the pitch/frequency of the siren seems higher than it really is
Europa is most likely made of
A) pure water ice B) rock and water ice C) rock and iron D) pure rock
Which of the terrestrial worlds has the strongest magnetic field?
A) the Moon B) Mercury C) Earth D) Mars E) Venus