A beam of light of two different wavelengths enters a pane of glass 3.00 mm thick at an angle of incidence of 56°. The indices of refraction for the two different colors are 1.514 and 1.528
Because of dispersion, the colored beams, although parallel, are separated by a small distance. How far apart are they? A) 0.057 mm
B) 0.0083 mm
C) 0.025 mm
D) 0.014 mm
E) 0.0062 mm
D
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Two single charged ions moving perpendicularly to a uniform magnetic field (B = 0.40 T) with speeds of 5000 km/s follow circular paths that differ in diameter by 5.0 cm. What is the difference in the mass of these two ions?
A. 2.6 × 10?28 kg B. 6.4 × 10?28 kg C. 3.2 × 10?28 kg D. 5.1 × 10?28 kg E. 1.1 × 10?28 kg
Which of the following is the best object to use as a point of reference for describing the location of the parked car?
A. the bird B. the streetlight C. the store D. the tree
The total force on an object is zero. The angular momentum of the object
A) is zero. B) may be changing. C) can only be changing direction. D) is constant. E) can only be changing magnitude.
In the equation A = B/C, the B and C are said to be _______________ proportional
a. directly b. inversely c. not d. exactly