The galactic center lies in the direction of which constellation?
A) Orion
B) Leo
C) Taurus
D) the Big Dipper
E) Sagittarius
E
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Based solely on an understanding of the greenhouse effect (as displayed in the figure), which one of the following statements is true?
a. We do not yet understand the greenhouse effect well enough to make predictions about how it affects our planet. b. Global warming poses a grave threat to our future. c. We should expect an increase in the greenhouse gas concentration to lead to global warming. d. Humans are causing global warming.
How much heat is produced in the 10-? resistor in 5.0 s when ? = 18 V?
A. 72 J B. 32 J C. 50 J D. 18 J E. 90 J
A mass of 2 kg traveling at 3 m/s undergoes a one-dimensional elastic collision with a group of four 1-kg masses that are at rest in contact with each other and lined up in the same direction as the velocity of the 2-kg mass
As a result of the collision A) the 2-kg mass comes to a stop and one of the 1-kg masses takes off at 6 m/s. B) the 2-kg mass comes to a stop and two of the 1-kg masses take off at 3 m/s. C) the 2-kg mass comes to a stop and three of the 1-kg masses take off at 2 m/s. D) the 2-kg mass comes to a stop and all four of the 1-kg masses take off at 2 m/s. E) the 2-kg mass and the five other masses travel at 1 m/s.
Which of the following statements about the differences between Fermi-Dirac statistics and Bose-Einstein statistics is NOT true?