Comets with extremely elliptical orbits, like Hyakutake and Hale-Bopp,
A) come from the Kuiper belt.
B) come from the asteroid belt.
C) are captured by Jupiter.
D) are Trojan comets.
E) come from the Oort cloud.
E
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Uniform Electric Fields: Consider a uniform horizontal electric field of 50 N/C directed toward the east. If the electric potential at a given point in the field is 80 V, what is the potential at a point 1.0 m directly east of the point?
A. 15 V B. 30 V C. 90 V D. 130 V
If object A has more mass than object B,
a. A will weigh more than B. b. A will be harder to accelerate than B. c. A will be harder to keep moving in a circle. d. all of the above
A race car circles 10 times around an 8-km track in 20 min. What is its average velocity per lap?
What will be an ideal response?
Contrast the appearance of the H-R diagrams of a young open and old globular cluster
What will be an ideal response?