When a formal definition of a planet in the solar system was adopted, Pluto was reclassified as a dwarf planet. What characteristic of planets does NOT describe Pluto?
A) Planets orbit the Sun.
B) Planets are approximately spherical.
C) Planets have cleared the neighborhood around their orbit.
D) Planets orbit in ellipses with low eccentricity.
E) Planets orbit in or very near the ecliptic plane.
C
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Rocks formed from consolidated sediment deposited in layers are known as _____________ rocks
a. crystalized b. foliated c. igneous d. sedimentary
Three long, straight, parallel wires all lie in the yz plane and each carries a current of 20 A in the positive z direction. The two outer wires are each 4.0 cm from the center wire. What is the magnitude of the magnetic force on a 50-cm length of either of the outer wires?
a. 1.0 mN b. 0.50 mN c. 1.1 mN d. 1.5 mN e. 2.0 mN
What basic thermodynamic law applies to Question 5?
Regions in which earthquakes are common are also regions in which
A) hurricanes are common. B) volcanoes are common. C) the geomagnetic force is strong. D) many fossils are found.