Refer to this scenario for the following questions:
Lost in Spacetime.Just when you thought it was safe to take final exams ...a vindictive multi-dimensional being reaches down (up? over? through?) to Earth and pulls you out of the universe.You are thrown back into the universe at a place of this being's choosing,and she permits you to leave only after you have identified your surroundings.You are subject to several tests.
Through a scientifically unexplainable miracle,you are able to survive in every one of the places you are tested.(Lest you become too comfortable,however,you certainly are able to feel any associated pain due to high temperature,pressure,gravity,etc. ) In each case described below,identify your surroundings.In some cases,the surroundings described may exist only during eras of the universe (past or future) other than our own time;in those cases,you should identify both the place and the time where you are located.
-At last,someplace fairly comfortable.Very weak gravity is holding you to the surface of the small object on which you sit.Your object is apparently moving away from a star,perhaps one that it orbits with a period of thousands of years.Around you,geysers are spouting gas into space.Looking back along the object's orbit,you see particles of dust that the geysers apparently blew off the object when it was nearer to the star that it is now leaving behind.You conclude that the geysers were recently much more active but are now settling down into a quiescent state that may last for millennia.You also soon realize that you are closer to home than you have been in all your previous journeys.Perhaps if you can somehow find a small rocket,a heat shield,and a good parachute,you can escape and head home for your final exam.Where are you?
A) You are on an asteroid near the center of a galaxy,heading in toward a massive black hole.
B) You have been shrunk in size and are riding a grain of interstellar dust that is carrying you on an orbit about our very own Sun.
C) You are riding a jet of gas from a quasar that is headed in the direction of an ordinary star.
D) You are on comet Hale-Bopp,circa May 1997.
E) You are at Disneyland on the Moon,riding the new "wild and wet" roller coaster.
Correct Answer:
Verified
Q29: Refer to this scenario for the following
Q30: Helium originates from
A)stellar nucleosynthesis only.
B)the Big Bang
Q31: What is postulated to have caused a
Q32: Refer to this scenario for the following
Q33: What are the two key observational facts
Q35: Refer to this scenario for the following
Q36: Why does the Big Bang theory predict
Q37: The observed composition of ordinary matter in
Q38: Refer to this scenario for the following
Q39: GUT theories predict that protons will eventually
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