A 6.00 kg mass is located at (2.00 m, 2.00 m, 2.00 m) and a 5.00 kg mass is located at (–1.0 m, 3.00 m,–2.00 m). If this system of masses rotated about the X-axis perpendicular to the Z-Y plane, then the moment of inertia of this system is
A. 281 kg 
B. 167 kg
C. 113 kg
D. 85 kg
E. 69 kg
C. 113 kg
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In the geometry shown, the angles of the triangle
A) add up to less than 180 degrees. B) add up to more than 180 degrees. C) add up to exactly 180 degrees. D) cannot be measured.
What is the Oort cloud?
A) It's not really a cloud at all, but rather refers to the trillion or so comets thought to orbit the Sun at great distances. B) It is another name for the cloud of gas from which our solar system was born. C) It is a great cloud of gas that resides far beyond the orbit of Pluto. D) It is a giant storm in the atmosphere of Saturn.
A certain amount of ideal monatomic gas is maintained at constant volume as it is cooled from 455K to 405 K. This feat is accomplished by removing 400 J of heat from the gas. How much work is done by the gas during this process?
The ideal gas constant is R = 8.314 J/mol ? K. A) 0.00 J B) 200 J C) 400 J D) -400 J E) -200 J
When a metal plate with a hole in it is cooled, the size of the hole becomes
1) smaller, 2) larger, 3) remains the same size, and when the plate is heated, the hole becomes 4) smaller. 5) larger. 6) remains the same size.