The determination of the composition of a material by bombarding it with neutrons and monitoring the emitted radiation is
a. nuclear fission analysis.
b. nuclear fusion analysis.
c. neutron activation analysis.
d. nuclear emission analysis.
e. beta decay analysis.
c
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One of the rare galaxies that is isolated in space is likely to be a(n) ____
a. starburst galaxy b. ultra luminous infrared galaxy c. dwarf galaxy d. antenna galaxy e. spiral galaxy
Compared with sea-level cooking, in cooking eggs by boiling in mountain regions you should boil the eggs
A) with a hotter flame. B) for a shorter time. C) for a longer time. D) all of the above E) none of the above
By what amount does the intensity level decrease when you triple your distance from a source of sound?
A) 9.5 dB B) 4.8 dB C) 6.0 dB D) 12 dB E) 3.0 dB
Charge of uniform density 4.0 nC/m is distributed along the x axis from x = -2.0 m to x = +3.0 m. What is the magnitude of the electric field at the point x = +5.0 m on the x axis?
a. 16 N/C b. 13 N/C c. 19 N/C d. 26 N/C e. 5.0 N/C