In partially stabilized zirconia, particles of the tetragonal phase transform to the _________phase at the crack tip when subject to a sufficient stress.
Fill in the blank(s) with the appropriate word(s).
monoclinic
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Mass on a Spring: A 0.50-kg object is attached to an ideal spring of spring constant (force constant) 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. At what distance from the equilibrium position are the kinetic energy and potential energy of the system the same?
A. 0.017 m B. 0.029 m C. 0.12 m D. 0.17 m
What is the energy released for the reaction where the products are 0.0051 u less than the reactants? (1 u = 931.5 MeV/c2)
a. 7.6 MeV b. 5.2 MeV c. 4.8 MeV d. 8.5 MeV
Assume you charge a comb by running it through your hair and then hold the comb next to a bar magnet. Do the electric and magnetic fields produced constitute an electromagnetic wave?
1.Yes they do, necessarily. 2.Yes they do, because charged particles are moving inside the bar magnet. 3.They can, but only if the electric field of the comb and the magnetic field of the magnet are perpendicular. 4.They can, but only if both the comb and the magnet are moving. 5.They can, if either the comb or the magnet or both are accelerating.
A river 100 m wide flows due south at 1 m/s. A boat that goes 1 m/s relative to the water leaves the west bank. To land at a point due east of its starting point, the boat must be pointed
A) northeast. B) east. C) southeast. D) nowhere–it can't be done.