A certain crystal has an interatomic spacing of 0.442 nm. A beam of neutrons moving with a speed of 1640 m/s is diffracted from the crystal. What is the angle of the second interference maximum?
A) 17.0°
B) 21.0°
C) 33.0°
D) 60.0°
E) 90.0°
C
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Which of the following best describes the goal of SETI (Search for Extraterrestrial Intelligence)?
A) to detect signals originating from civilizations from outside the solar system B) to detect life of any kind, anywhere besides Earth C) to estimate the number of civilizations in the galaxy D) to find habitable planets around other stars
The resultant of a 40-N force at right angles to a 30-N force is
A) 30 N. B) 40 N. C) 50 N. D) greater than 50 N.
Explain the process through which kinetic energy is lost in an inelastic collision
What will be an ideal response?
Successive bright fringes in an interference pattern result from
A) equal-length distances from the slits. B) distance from the slits successively increasing one wavelength at a time. C) destructive interference. D) none of the above