In solid-solution strengthened metals, substitutional and interstitial solid-solution atoms interact with _________dislocations in the metal.
Fill in the blank(s) with the appropriate word(s).
edge
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As a projectile moves along its parabolic trajectory, which of the following remain constant (ignoring air resistance, and defining the z axis as pointing upward)?
A. Its speed B. Its velocity C. Its x-velocity and y-velocity D. Its z-velocity E. Its acceleration F. Its x-velocity, y-velocity, and acceleration T. Some other combination of the given quantities
A decoration, of mass M, is suspended by a string from the ceiling inside an elevator. The elevator is traveling UPWARD with a constant speed. The tension in the string is
A) greater than Mg. B) less than Mg. C) equal to Mg. D) impossible to tell without knowing the speed. E) impossible to tell without knowing the decoration mass.
A 1.8-kg block is projected up a rough 10° inclined plane. As the block slides up the incline, its acceleration is 3.8 m/s2 down the incline. What is the magnitude of the force of friction acting on the block?
A. 5.0 N B. 3.8 N C. 4.2 N D. 4.6 N E. 6.5 N
As a proton moves in the direction the electric field lines
A) it is moving from low potential to high potential and gaining electric potential energy. B) it is moving from low potential to high potential and losing electric potential energy. C) it is moving from high potential to low potential and gaining electric potential energy. D) it is moving from high potential to low potential and losing electric potential energy. E) both its electric potential and electric potential energy remain constant.