An electromagnetic wave with components Ey = Eo sin(kx - ?t) and Bz = Bo sin(kx - ?t) is a wave with a frequency of
A)
k.
B)
?/2?.
C)
k/?.
D)
?.
E)
?/?.
B
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According to our present theory of solar system formation, why were solid planetesimals able to grow larger in the outer solar system than in the inner solar system?
A) because the Sun's gravity was stronger in the outer solar system, allowing more solid material to collect B) because only metal and rock could condense in the inner solar system, while ice also condensed in the outer solar system C) because gas in the outer solar system contained a larger proportion of rock, metal, and hydrogen compounds than the gas in the inner solar system D) because only the outer planets captured hydrogen and helium gas from the solar nebula
The primary of a transformer is the coil connected to
A) the load. B) the Internet. C) the input power line. D) none of the above
What is the gauge pressure at a depth of 100 m. in water?
What will be an ideal response?
The circuit below contains three resistors, A, B, and C, which all have equal resistances. The emf ? = 110V. Which resistor generates the most thermal energy after the switch is closed?
A. A B. B C. C D. A and B E. All three generate equal amounts of thermal energy.