Suppose we look at a photograph of many galaxies. Assuming that all galaxies formed at the same time after the Big Bang, which galaxy appears to us as the youngest?
A) the galaxy that is furthest from us
B) the galaxy that is closest to us
C) the galaxy that appears bluest to us
D) the galaxy that appears largest to us
E) All galaxies would appear to have the same age.
A
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A single brick falls with acceleration g. The reason a double brick falls with the same acceleration is
A) that in free fall all accelerations are g. B) its ratio of force to mass is the same. C) an experimental fact tested many times. D) none of the above
When waves from a pair of closely-spaced slits arrive in phase
A) a bright fringe is produced. B) a dark fringe is produced. C) both bright and dark fringes are produced. D) none of the above
Which of the following makes an approximate uniform electric field?
A) a metal charged sphere B) a metal charged cylinder C) a very long line of positive charge D) very large, closely separated, parallel oppositely charged plates E) two long parallel, closely separated, oppositely charged lines of charge
State Archimedes' Principle
What will be an ideal response?