Which of the following is not an exception to the general patterns of motion in the solar system?
A) the "backward" orbit of Triton around Neptune
B) the extreme axis tilt of Uranus
C) the counterclockwise rotation of Venus
D) the large size of Earth's moon
E) the rings of Saturn
E
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Sodium (Na) atoms often lose the single electron that is in their outermost shell. How does losing the electron affect sodium's charge?
a. It is neutral. b. It has a positive charge. c. It has a negative charge. d. It increases its electronegativity. e. The charge is not affected by the electron loss.
A mass 
is connected by a light string that passes over a pulley of mass M to a mass 
sliding on a frictionless horizontal surface as shown in the figure. There is no slippage between the string and the pulley. The pulley has a radius of 25.0 cm and a moment of inertia of 1?2 
If m1 is 1.00 kg, 
is 2.00 kg, and M is 4.00 kg, then what is the tension in the string attached to 
?
A. 3.92 
B. 3.65
C. 3.23
D. 3.02
E. 2.98
A rocket is launched from the origin with an acceleration of 20.0 
at an angle of 30.0 degrees above the horizontal. The launch acceleration lasts for 2.00 seconds at which time the fuel is exhausted. The rocket then falls with an acceleration of 9.80 
downward. What is the maximum velocity in the upward direction?
A. 20.0 m/s B. 25.0 m/s C. 30.0 m/s D. 35.0 m/s E. 40.0 m/s
At present, what is the primary way that the search for extraterrestrial intelligence (SETI) is carried out?
A) by using radio telescopes to search for signals from extraterrestrial civilizations B) by analyzing high-resolution images of nearby stars in search of evidence for structures that could not have developed naturally C) by searching for planets around distant stars D) by using x-ray telescopes to search for exhaust from interstellar spacecraft E) by seeking access to the secret records and alien corpses kept at the military's Area 51 in Nevada