Two harmonic waves traveling in opposite directions interfere to produce a standing wave described by y = 2 sin (px) cos (3pt) where x is in m and t is in s. What is the distance (in m) between the first two antinodes?
a. 8
b. 2
c. 4
d. 1
e. 0.5
D
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At the first minima on either side of the central bright spot in a double-slit experiment, light from each opening arrives
A) in phase. B) 45° out of phase. C) 90° out of phase. D) 180° out of phase. E) none of the given answers
A long hollow cylindrical conductor (inner radius = 2.0 mm, outer radius = 4.0 mm) carries a current of 12 A distributed uniformly across its cross section. A long wire which is coaxial with the cylinder carries an equal current in the same direction. What is the magnitude of the magnetic field 3.0 mm from the axis?
A. 1.1 mT B. 1.4 mT C. 1.7 mT D. 2.0 mT E. 0.2 mT
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______ refers to large and complex collections of information from a variety of sources, including website statistics, e-commerce transactions, and social media profiles.
A. Digital footprint B. Information overload C. Big data D. PII