What type of seismic wave causes the most
property damage?
a) a surface wave
b) a body wave
c) a transform wave
d) a P wave
a
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Seyfert galaxies are always ____ galaxies
a. dwarf b. irregular c. spiral d. elliptical e. flocculent
At what two celestial locations do the celestial equator and ecliptic coincide?
a. winter solstice and summer solstice b. vernal equinox and autumnal equinox c. They coincide at all points because they are the same. d. north celestial pole and south celestial pole e. zenith and east point
Consider a collision where an object with a known mass and known speed collides with another object at rest. The objects are free to move in three dimensions. How many quantities suffice to completely determine the system’s final state (that is, the outgoing objects’ velocities and their combined change in internal energy)?
A. Zero B. One C. Two D. Three E. Four
A boxcar without a front or a back is moving toward the right. Two flashes of light move through the boxcar, one moving from back to front toward the right, the other moving from front to back toward the left. A passenger in the boxcar records how long it takes each flash of light to pass from one end of the boxcar to the other end. According to the passenger, which took longer?
a. the flash going from back to front b. the flash going from front to back c. They both took the same time. d. It depends on whether the passenger is sitting at the front or the back of the boxcar.