A layer of kerosene (n = 1.45) is floating on water (n = 1.33). For what angles of incidence at the kerosene-water interface will light be totally internally reflected within the kerosene?
q > 66.5°
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A heat engine in each cycle absorbs energy of magnitude |QH| as heat from a high temperature reservoir, does work of magnitude |W|, and then absorbs energy of magnitude |QL| as heat from a low temperature reservoir. If |W| = |QH| + |QL| this engine violates:
A. the zeroth law of thermodynamics B. the first law of thermodynamics C. the second law of thermodynamics D. the third law of thermodynamics E. none of the above
Approximately how many extrasolar planets have been discovered to date?
A) tens B) hundreds C) thousands D) millions E) billions
Which of the following is FALSE
A) The edge of the universe is 14 billion light years away from us and we are located in the center of the universe b) the farther away an object is the earlier we see it in time from earth c) we see object as they were and where they were when light left them, but not as they are today
Nonscientific practices that make no claims about how the natural world works do not conflict with science
Indicate whether the statement is true or false