A triatomic molecule is oriented as follows along the x-axis: mass m is at the origin, mass 2m is at x = a, and, mass 3m is at x = 2a. What is the moment of inertia of this molecule about the y-axis?
A) 2ma2
B) 3ma2
C) 12ma2
D) 14ma2
D
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An incandescent bulb emits what kind of spectrum?
A. emission-line B. blueshifted C. continuous D. absorption-line E. redshifted
Two wires, each having a weight per unit length of 1.0 × 10?4 N/m, are strung parallel, one 0.10 m above the other. If the wires carry the same current, though in opposite directions, how great must the current in each wire be for the magnetic field of the lower conductor to balance the weight of the upper conductor?
What will be an ideal response?
The interstellar medium is made of ______________
a. gas b. dust c. gas and dust d. None of these choices are correct.
The NASA lander which deployed the first rover, Sojourner, in 1997 was:
A) Mars Rover. B) Global Surveyor. C) Viking 2. D) South Polar Lander. E) Pathfinder.