Triton's retrograde orbit is consistent with it having
A) been spun out from a rapidly rotating Neptune
B) been captured by Neptune's gravity
C) undergone a massive impact
D) formed from a rotating disk of gas and dust around Neptune
B
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Tycho Brahe's contribution to astronomy included:
a. Tycho Brahe's contribution to astronomy included: b. inventing the telescope. c. proving that Earth orbits the Sun. d. collecting data that enabled Kepler to discover the laws of planetary motion.
Our theories of galaxy formation are just as well developed and tested as are our theories of star and planet formation
Indicate whether the statement is true or false
Velma, who is carrying a "light clock," passes Mort at a high speed. Velma observes that, during one tick of her own light clock, the light beam on her clock travels
A) further than 300,000 km. B) a distance of one light year. C) no distance at all. D) less than 300,000 km. E) 300,000 km.
A loop of wire (resistance = 2.0 m?) is positioned as shown with respect to a long wire which carries a current. If d = 1.0 cm, D = 6.0 cm, and L = 1.5 m, what current is induced in the loop at an instant when the current in the wire is increasing at a rate of 100 A/s?
a.
34 mA
b.
30 mA
c.
27 mA
d.
38 mA
e.
0.50 mA