The spectrum of radio galaxies matches ________ radiation, and is produced in strong magnetic fields
Fill in the blank(s) with correct word
synchrotron
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Which statement is always correct when applied to a charge distribution located in a finite region of space?
a. Electric potential is always zero at infinity. b. Electric potential is always zero at the origin. c. Electric potential is always zero at a boundary surface to a charge distribution. d. Electric potential is always infinite at a boundary surface to a charge distribution. e. The location where electric potential is zero may be chosen arbitrarily.
Pulsars are rapidly spinning
A) regular stars like our Sun. B) red giant stars. C) neutron stars. D) white dwarfs. E) supernova.
Which of the following metals is least likely to be suitable for wire drawing?
(a) Magnesium (b) Aluminum (c) Copper (d) Iron
The time it takes a projectile fired straight up at 10 m/s to reach the top of its path is about
A) 1 s. B) 2 s. C) 10 s. D) not enough information