A successful theory of the formation of the solar system must explain
A) that all planets rotate in a prograde sense.
B) that all planets have elliptical orbits with high eccentricities.
C) the existence of the asteroid belt between Jupiter and Neptune.
D) that the inner planets have more hydrogen and helium in their atmospheres than do the outer planets.
E) all observed properties of the solar system.
E
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Fluid Flow: Ideal incompressible fluid flows through a 4.0-cm-diameter pipe at 1.0 m/s. There is a 2.0 cm diameter constriction in the line. What is the speed of the fluid in this constriction?
A. 0.25 m/s B. 0.50 m/s C. 2.0 m/s D. 4.0 m/s
On the graphs shown, you can identify an ice age by looking for __________.
A. a trough (bottom of a dip) on the temperature graph B. a peak on the temperature graph C. a trough (bottom of a dip) on the carbon dioxide graph D. a place on the temperature graph where the temperature curve falls steeply
Which of the Uranian moons displays the widest range of surface terrains, suggesting some catastrophic disruption?
A) Puck B) Umbriel C) Oberon D) Miranda E) Ariel
What potential difference is needed to accelerate a proton from rest to give it a wavelength of 2.00 × 10^–12 m?
a. 411 V b. 206 V c. 1650 V d. 617 V