According to the solar nebula theory, dust grains, whatever their composition, grew from microscopic size first by _____
A) accretion
B) outgassing
C) condensation
D) differentiation
C
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Different types of active galaxies are caused by different orientations of the central black hole's _______________
Fill in the blank(s) with correct word
There is a 10-A current through a wire for 2.0 min. (e = 1.60 × 10-19 C)
(a) How much charge has passed through this wire? (b) How many electrons have passed any point in the wire?
Identical 2.0-?C charges are located on the vertices of a square with sides that are 2.0 m in length. Determine the electric potential (relative to zero at infinity) at the center of the square
a. 38 kV b. 51 kV c. 76 kV d. 64 kV e. 13 kV
Two extremely large nonconducting horizontal sheets each carry uniform charge density on the surfaces facing each other. The upper sheet carries +5.00 µC/m2. The electric field midway between the sheets is 4.25 × 105 N/C pointing downward
What is the surface charge density on the lower sheet? (?0 = 8.85 × 10-12 C2/N ? m2)