An 80-km/h airplane caught in a 60-km/h crosswind has a resultant speed of
A) 60 km/h.
B) 80 km/h.
C) 100 km/h.
D) 141 km/h.
Answer: C
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The spherical component is the __________
a. halo b. bulge c. halo and bulge d. dark matter
Small deviations in a planet's orbital motion:
A) show we don't fully understand gravitational forces yet. B) indicate the presence of an extensive atmosphere. C) indicate the presence of a powerful magnetic field. D) imply the nearby presence of a massive body. E) show the planet's orbit isn't stable.
When two objects of unequal mass orbit each other, the center of mass is ____
a. at the center of the more massive object b. at the center of the least massive object c. half way between the centers of each object d. always closer to the less massive of the two objects e. always closer to the more massive of the two objects
Which planet's major moons were named after literary characters?
a. Jupiter b. Saturn c. Uranus d. Neptune