This diagram represents the solar nebula early in its history and shows the location of the frost line. Suppose you discover an object that is made of metal, rock, and ice. In which of the four regions shown in the diagram did it form?
A) Region 1
B) Region 2
C) Region 3
D) Region 4
D) Region 4
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Magnetic field strength about a magnet is strongest where magnetic field lines are
A) closer together. B) straightest. C) most curved. D) more spread.
The Doppler shift is the same if the emitting object is moving toward you at some speed, or you (the observer) are moving toward it at that speed and it is still.
Answer the following statement true (T) or false (F)
When static equilibrium is established for a charged conductor, the electric field just inside the surface of the conductor is
A) opposite to the field outside. B) equal to the perpendicular component of the field outside. C) equal to the field outside. D) zero. E) cannot be determined.
A boxcar of mass 200 tons at rest becomes uncoupled on a 1.5° grade. If the track is considered to be frictionless, what speed does the boxcar have after 10 seconds?
a. 0.37 m/s c. 2.6 m/s b. 0.59 m/s d. 4.3 m/s