The ancient view of an Earth-centered geocentric universe suggested that life elsewhere should be
A) common
B) rare
C) this view gives us no clue of the likelihood of life elsewhere
D) at the center of another, parallel universe
B
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What types of fundamental particles are in an atom?
A) just up quarks and top quarks B) just neutrons and electrons C) just down quarks, electrons, and positrons D) just up quarks, down quarks, and electrons E) just electons and positrons
Conservation of Momentum: In a police ballistics test, 2.00-g bullet traveling at 700 m/s suddenly hits and becomes embedded in a stationary 5.00-kg wood block. What is the speed of the block immediately after the bullet has stopped moving relative to the block?
Fill in the blank(s) with the appropriate word(s).
Historians claim that mechanization (development of the cotton gin) was responsible for preservation of the institution of slavery in the American South
Discuss the possibility that they could be correct or incorrect, and try to find evidence to support your thesis.
An AC circuit has a 100. ohm resistor in series with a 4.9 ?F capacitor and a 700. mH inductor. At what frequency does the circuit act like a pure resistance?
A) 86. Hz B) 0.54 kHz C) 1.9 mHz D) 0.29 MHz E) 12. mHz