What electric field has the same energy density as a 1.0 T magnetic field?
A. 1.0 V/m
B. 
C. 
D. 
E.
B.
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Angular and Linear Quantities: A bicycle has wheels that are 60 cm in diameter. What is the angular speed of these wheels when it is moving at 4.0 m/s?
A. 1.2 rad/s B. 4.8 rad/s C. 0.36 rad/s D. 13 rad/s E. 7.6 rad/s
What is a nuclear fission?
A. a nuclear reaction that occurs when two light elements come together B. a nuclear reaction that occurs when a heavy element splits into lighter elements C. a nuclear reaction that occurs when sunlight falls on radioactive substances
Describe the two different kinds of seismic waves. Distinguish between them by describing how they move through Earth's interior
What will be an ideal response?
The primary way that we observe the atomic hydrogen that makes up most of the interstellar gas in the Milky Way is with ________
A) radio telescopes observing at a wavelength of 21 centimeters B) X-ray telescopes C) space-based ultraviolet telescopes D) ground-based visible-light telescopes