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) 4/5.
B) 8/5.
C) 1/2.
D) 2.
E) 4.
E
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A pair of observers moving relative to one another will always agree upon all but which of the following:
A. the length of a space-time interval between two events B. their respective rest masses C. whether two events are simultaneous D. their relative velocity E. the relativistic factor gamma that links their reference frames
the magnetic field increases in magnitude with time.
A. The induced current flows clockwise. B. The induced current flows counterclockwise. C. No current flows in the loop. D. A current flows, but one needs additional information to determine the direction in which it flows. E. One needs additional information to determine even whether a current flows or not.
Newton's modification of Kepler's Laws allows us to find the ________ of the planets, if we can observe satellites in orbit about them
Fill in the blank(s) with correct word
Both the microscope and the telescope make the object appear much larger. Why are these two instruments designed differently (e.g., why are the equations for magnification quite different)?
What will be an ideal response?