In quantum theory, a wave packet
A) represents many particles, each one having both a specific position and a specific velocity.
B) represents one particle having a range of possible positions but a specific velocity.
C) represents one particle having a range of possible positions and a range of possible velocities.
D) represents many particles, each one having a range of possible positions and a range of possible velocities.
E) represents one particle having a specific position but a range of possible velocities.
Question 2
The most significant difference between the astronomical theories of Ptolemy and Copernicus is
A) Ptolemy's is not based on scientific evidence, while Copernicus's is.
B) Ptolemy's theory does away with many of the complexities of the Copernican theory.
C) Ptolemy's theory is sun-centered, whereas Copernicus's is Earth-centered.
D) Ptolemy uses circular planetary orbits while Copernicus uses elliptical orbits.
E) Ptolemy's theory is Earth-centered, whereas Copernicus's is sun-centered.
