Two uniform solid spheres have the same mass, but one has twice the radius of the other. The ratio of the larger sphere's moment of inertia to that of the smaller sphere is
A) 9/5.
B) 8/5.
C) 4/5.
D) 4.
E) 2.
D
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Determine the change in entropy (in J/K) when 5.00 moles of an ideal gas at 0°C are compressed isothermally from an initial volume of 100 cm3 to a final volume of 20 cm3.
A. ?191 B. ?52 C. ?71 D. ?67 E. ?208
Astronaut Hans leaves Earth in a spaceship traveling at a speed of 0.280c relative to the observer Brian at rest on Earth
Hans is holding a pencil at an angle of 30° with the direction of travel, as seen by Hans. What angle does the pencil make with the direction of travel, as seen by Brian on Earth? A) 29° B) 30° C) 31° D) 33° E) 90°
Cooler, less luminous main sequence stars have ________.
A. lower masses B. masses that vary widely C. the same masses as hotter stars D. higher masses
If the electric field just outside a thin conducting sheet is equal to 1.5 N/C, determine the surface charge density on the conductor
a. 53 pC/m2 b. 27 pC/m2 c. 35 pC/m2 d. 13 pC/m2 e. 6.6 pC/m2