Which of the following observations does NOT inform astronomers about how the Solar System must have formed.

A. The Solar System is flat in structure.
B. All known ages for Solar System bodies are 4.6 billion years or younger.
C. The farther out planets take longer to complete an orbit about the Sun.
D. The inner four planets are small and rocky, while the outer four planets are large and gaseous.


Answer: C

Physics & Space Science

You might also like to view...

An object is 12 cm in front of a concave spherical mirror, and the image is 3.0 cm in front of the mirror. What is the focal length of the mirror?

A) 0.25 cm B) 15 cm C) 4.0 cm D) 2.4 cm E) 1.3 cm

Physics & Space Science

A freely falling object has a constant acceleration of 9.8 m/s2 . This means that

a. the object's displacement changes by 9.8 m every second squared. b. the object's speed increases by 9.8 m/s each second. c. the object's acceleration increases by 9.8 m/s2 each second. d. the object travels 9.8 m each second.

Physics & Space Science

The most noteworthy event that occurred during the Pleistocene was the

A) emergence of the early humans. B) ice age. C) appearance of the grasslands. D) divergence of horses.

Physics & Space Science

What is the impedance at 1500 Hz if a 100-? resistor, 20-mH coil, and 1.0-?F capacitor are connected in series?

A) 0.19 k? B) 82 ? C) 0.13 k? D) 0.11 k?

Physics & Space Science