The solar nebula theory is NOT able to explain which of the following observed characteristics of the solar system?
a. common direction of rotation of the planets
b. common direction of revolution of the planets
c. the formation of hydrogen atoms in the solar system from subatomic particles
d. the density of the Jovian planets
c
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Ohm's Law: What potential difference is required to cause 4.00 A to flow through a resistance of 330 ??
A. 12.1 V B. 82.5 V C. 334 V D. 1320 V
The graph shows the force on an object as it moves a distance x. What is the work done by the force when the object moves from 0.0 m to 6.0 m?
A. 14 J
B. 12 J
C. 10 J
D. 8.0 J
E. 6.0 J
Star X has an apparent magnitude of 3, and star Y has an apparent magnitude of 8. What can we conclude?
A) Star X appears brighter in the night sky than star Y. B) Star Y appears brighter in the night sky than star X. C) Star X is farther away from us than star Y. D) Star Y is farther away from us than star X.
The peak voltage of an AC source is 400 V. What is the rms voltage?
a. 100 V b. 200 V c. 141 V d. 283 V