_________in a material results when it is possible to displace positive and negative charges relative to each other, but there is no flow of current.
Fill in the blank(s) with the appropriate word(s).
Polarization
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When spiral galaxies do collide, the impact is greatest on their:
A) individual stars. B) galactic nuclei. C) giant molecular clouds. D) open clusters. E) globular clusters.
The ________ theory describes the origin of the planets as having been formed by accretion of small particles into progressively larger and larger bodies
Fill in the blank(s) with correct word
An electromagnetic wave has a peak electric field of 3.0 kV/m
What is the intensity of the wave? (c = 3.0 x 108 m/s, ?0 = 4? × 10-7 T ? m/A, ?0 = 8.85 × 10-12 C2/N ? m2) A) 24 kW/m2 B) 12 kW/m2 C) 8.0 kW/m2 D) 4.0 kW/m2
What is the equivalent resistance for these 3.00-? resistors?
a.
1.33 ?
b.
2.25 ?
c.
3.00 ?
d.
7.50 ?