Uncertainty Principle Using Momentum and Position: If the maximum possible accuracy in measuring the position of a particle increases, the maximum possible accuracy in measuring its velocity will
A. increase.
B. decrease.
C. not be affected.
Answer: B
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A 7.5 kg bowling ball is dropped from the top of a 25m tall building. Ignoring air resistance, when the bowling ball hits the sidewalk below, its kinetic energy is equivalent to how many food calories (one food calorie = 1 kilocalorie in SI measure)
A. 0.44 B. 880 C. 440 D. 0.22 E. 0.88 F. 220
According to our theory of solar system formation, what are asteroids and comets?
A) the shattered remains of collisions between planets B) chunks of rock or ice that condensed after the planets and moons finished forming C) chunks of rock or ice that were expelled from planets by volcanoes D) leftover planetesimals that never accreted into planets
According to our theory of solar system formation, where did the comets of the Oort cloud form?
A) in the inner solar system B) far beyond the orbit of Pluto C) in the region of the jovian planets D) in the asteroid belt
The first 87% of geologic time is often called
a. Hadean time. b. Pangaean time. c. Precambrian time. d. Proterozoic time.