In functional analysis, an artifact is examined for organic residues as well as for traces left behind by this process. For 10 points each:
[10m] Name this damaging tribological process in which material comes off of surfaces that are sliding against each other.
ANSWER: wear [accept use-wear analysis; prompt on friction; prompt on abrasion; reject “wear and tear”]
[10h] This geophysical technique can map artifacts at a higher resolution than electrical resistivity surveys. The interface reflections detected by this technique can be occluded by conductive soils with high clay or salt content.
ANSWER: ground-penetrating radar [or GPR or ground-probing radar; accept subsurface radar or surface-penetrating radar or SPR; prompt on radar or radio detection and ranging]
[10e] For a subsurface artifact modeled as this type of source, the reflected power detected by a radar receiver is proportional to the inverse fourth power of target depth. Geometrical optics assumes that light is emitted from this type of ideal source with negligible dimensions.
ANSWER: point source [accept point scatterer or point reflector]
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