If an electromagnetic wave moves in the +y direction, and its magnetic field disturbance is in the +z direction, what polarization does this wave have? (Assume the z axis points upward.)
A. Upright polarization
B. Horizontal polarization
C. One cannot answer without more information.
B. Horizontal polarization
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How does the slope of the graph in Procedure 1 compare with the average value of C d?
Ionization from the ____________________ star in the Orion nebula makes it ____________________ brightly
Fill in the blank(s) with correct word
Ohmic heating is
a. always undesirable. b. used in light bulbs. c. what makes fuses "blow". d. all of the above.
A 480-kg car moving at 14.4 m/s hits from behind a 570-kg car moving at 13.3 m/s in the same direction
If the new speed of the heavier car is 14.0 m/s, what is the speed of the lighter car after the collision, assuming that any unbalanced forces on the system are negligibly small? A) 10.5 m/s B) 13.6 m/s C) 19.9 m/s D) 5.24 m/s