According to de Broglie's hypothesis, the wave characteristics of a car are not observed because
A. the car behaves as a particle.
B. a car doesn't move fast enough to make its wavelength visible.
C. a car's momentum is so large that the wavelength is very small.
D. a car can't pass through a diffraction grating.
C. a car's momentum is so large that the wavelength is very small.
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Spherical Mirrors: The focal length of a convex mirror is has a magnitude of 20 cm. What is its radius of curvature?
A. -10 cm B. 40 cm C. -40 cm D. -20 cm E. 20 cm
Ten parsecs is about ________
A) 32.6 light-years B) 10 parallax seconds of angle C) 150 million kilometers D) 10,000 seconds
The gravitational force between two objects can be described using the equation Fg = G M1 M2 / d2. In this equation, what does d represent?
A) the universal gravitational constant B) the density of the smaller object C) the distance between the two objects D) the diameter of the larger object
Two capacitors with capacitances of 3.25 and 5.00 ?F, respectively, are connected in parallel. The system is connected to a 55-V battery. What charge accumulates on the 3.25-?F capacitor?
a. 16 ?C b. 180 ?C c. 0.30 ?C d. 3.4 ?C e. 1.5 ?C