The planets in the solar system
A) revolve around the Sun in the same direction
B) orbit around the Sun in nearly the same plane
C) have nearly circular orbits
D) all of these are true
Question 2
According to the uncertainty principle, which of the following statements is true?
A) It is impossible to measure both the mass and the momentum of a particle at the same time.
B) It is impossible to measure both the position and the momentum of a particle at the same time.
C) It is impossible for science to make any meaningful predictions about nature whatsoever.
D) It is impossible to measure both the speed and direction of a particle at the same time.
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