How was Pluto's surface mapped?
A) by mapping with the New Horizons spacecraft
B) by measuring the change in brightness as Charon eclipsed Pluto
C) by imaging with the Hubble Space Telescope
D) by imaging with powerful ground based telescopes
E) Pluto is too far away for its surface to be mapped.
B
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One U.S. fluid gallon contains a volume of 231 cubic inches. How many liters of gasoline would you have to buy in Canada to fill a 14-gallon tank? (Note: 1 L = 103 cm3.)
A. 53 B. 21 C. 14 D. 8.0 E. 4.0
Fossils are found
A) mostly in igneous rocks B) in all kinds of rocks with equal probability C) mostly in sedimentary rocks D) only in metamorphic rocks
A positive point charge q is placed off center inside an uncharged metal sphere insulated from the ground as shown. Where is the induced charge density greatest in magnitude and what is its sign?
?
?
A. A; negative B. A; positive C. B; negative D. B; positive E. C; negative
If a = 60 cm, b = 80 cm, Q = ?6.0 nC, and q = 6.0 nC, what is the magnitude of the electric field at point P in the figure?
A. 65 N/C B. 55 N/C C. 60 N/C D. 52 N/C E. 67 N/C