Draw a schematic (not to scale) of the Milky Way Galaxy face on so that you see the spiral arms. Label the spiral arms. Now draw a schematic (not to scale) of the Milky Way Galaxy edge-on, and locate and label the disk
What will be an ideal response?
Arms are shown in the face-on figure, usually two grand spiral arms (even though the MWG has spurs). Edge-on, the MWG appears like a quarter and we see the outer rim of the arms, which we refer to as the disk.
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Assuming the encounter hypothesis is correct and planets can only form from the gravitational interactions between passing stars, what implications does this have for the possibility of life elsewhere in the universe?
A) there would be no possibility of life at all because close stellar encounters never occur B) life would be exceedingly rare because close stellar encounters are exceedingly rare C) we have no way to determine the probability of close stellar encounters so we have no way of knowing D) life would be very common because stellar close encounters are constantly occurring
A diver, below the surface of a lake, notices that no light appears to be coming toward her greater than the angle 
measured from the vertical. If the index of refraction of water is 1.33, what is the angle 
A. 
B. 
C. 
D. 
E. 
For the maximum induced emf in the coil of a generator, the term sin ?t has a value of one
Indicate whether the statement is true or false
A person is nearsighted with a near point of 75. cm. (a) What FOCAL LENGTH is this? (b) What POWER lens is needed to correct their nearsightedness (assuming distance from lens to eye is negligible)?
What will be an ideal response?