The Half-Life of Chromium-51 Is 27

question 87

Multiple Choice

The half-life of chromium-51 is 27.8 days.How many half-lives have elapsed after one year?

• A)2.32 t
• B)32.4 t
• C)1.08 t
• D)13.1 t
• E)0.0762 t

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Definitions:

Nomograph

A type of graph used in seismology to determine the local magnitude of an earthquake.

S-Wave Amplitude

The measure of the height of the secondary or shear waves, which are one type of seismic wave produced by earthquakes.

Strike-Slip Faults

Faults where two blocks of crust slide past each other horizontally, with little vertical motion.

Plate Boundary

The margin or border between two tectonic plates, which can be characterized by seismic activity, volcanism, and distinct geological formations.