Werner Heisenberg's main contribution to the development of quantum theory was
A) the nonlocality principle.
B) his explanation of the photoelectric effect, in terms of photons.
C) a method for predicting the position at which electrons or other particles will strike the viewing screen in such experiments as the electron double-slit experiment.
D) a method for predicting the overall statistical patterns that appear in the electron double-slit experiment and other experiments using microscopic particles.
E) the uncertainty principle.
E
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If the AA numerical designation of an alloy is followed by “T7”, the alloy is solution heat-treated and artificially _________.
Fill in the blank(s) with the appropriate word(s).
Ordinary matter contains only the following quarks.
A. Strange B. Bottom C. Down D. Charm
Ideal Gas Law: A quantity of an ideal gas is kept in a rigid container of constant volume. If the gas is originally at a temperature of 19°C, at what temperature will the pressure of the gas double from its original value?
A. 91°C B. 38°C C. 311°C D. 273°C E. 122°C
A longitudinal wave travels on a slinky or any long spring. The wave is represented by the equation x(x, t) = 2.1 cm cos(2000 rad/s t - 40
x). What is the direction of the velocity of the wave?
A. the - x direction B. the + x direction C. the - y direction D. the + y direction