One phenomenon or experiment that supports the wave theory of matter is
A) the Michelson-Morley experiment.
B) the tiny flashes that are observed when a light beam strikes a screen.
C) interference effects with light.
D) the tiny flashes that are observed when an electron beam strikes a screen.
E) the double-slit experiment with electrons.
E
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The Moon always shows nearly the same face to Earth because
A) the Moon does not rotate. B) sunlight always hits the same face of the Moon. C) the Moon rotates once in the same amount of time that it takes Earth to orbit the Sun once. D) the Moon rotates once in the same amount of time that it takes the Moon to orbit Earth once.
A clarinet behaves like a tube closed at one end. If its length is 1.0 m, and the velocity of sound is 344 m/s, what is its fundamental frequency (in Hz)?
A. 264 B. 140 C. 86 D. 440 E. 172
Magnetic Field of a Long Wire: A long wire carrying a 2.0-A current is placed along the y-axis. What is the magnitude of the magnetic field at a point that is 0.60 m from the origin along the x-axis? (?0 = 4? × 10-7 T ? m/A)
A. 0.67 µT B. 1.3 µT C. 0.12 µT D. 6.7 T E. 12 T
One mole of an ideal gas has a temperature of 25°C. If the volume is held constant and the pressure is doubled, the final temperature (in °C) will be
a. 174 b. 596 c. 50 d. 323 e. 25