In the two-slit experiment, for the condition of bright fringes, the value of m = +4 corresponds to a path difference of
A) 4?
B) 3?
C) 2?
D) ?
E) (1/2)?
A
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In the figure shown, the coefficient of kinetic friction between the block and the incline is 0.29. What is the magnitude of the acceleration of the suspended block as it falls? Disregard any pulley mass or friction in the pulley.
A. 5.4 m/s2 B. 5.2 m/s2 C. 4.9 m/s2 D. 5.6 m/s2 E. 7.9 m/s2
When light enters a denser medium and is refracted,
a. the wavelength is unchanged. b. the wave speed increases. c. the frequency is unchanged. d. the wavelength increases.
Asteroids are sometimes referred to as ______________ planets
Fill in the blank(s) with correct word
A current may be induced in a coil by
a. moving one end of a bar magnet through the coil. b. moving the coil toward one end of the bar magnet. c. holding the coil near a second coil while the electric current in the second coil is increasing. d. all of the above. e. none of the above.