A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30° relative to the normal. If the index of refraction of water and glass are 1.33 and 1.5, respectively, at what angle (in degrees) does the light leave the glass (relative to its normal)?
A. 26
B. 35
C. 42
D. 22
E. 48
Answer: C
Physics & Space Science
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Two long parallel wires separated by 5.0 mm each carry a current of 60 A. These two currents are oppositely directed. What is the magnitude of the magnetic field at a point that is between the two wires and 2.0 mm from one of the two wires?
A. 2.0 mT B. 10 mT C. 8.0 mT D. 1.6 mT E. 7.2 mT
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A reasonable estimate for the mass of an ordinary passenger car is
A) 100 kg B) 1000 kg C) 5000 kg D) 10,000 kg
Physics & Space Science
Carbonaceous chondrites are a class of iron meteorites
Indicate whether the statement is true or false
Physics & Space Science
In the context of binary systems, a _____ is an explosion involving a white dwarf
A) nova B) sunspot C) comet D) zenith
Physics & Space Science