What is the definition of strain?
A) a type of normal stress where the forces are equal in all three dimensions
B) a force applied perpendicular to a surface
C) deformation of rock as a result of an applied stress
D) force applied parallel to a surface
Answer: C
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Tidal bores mostly occur on a(n) _______ .
a elliptical diurnal tide b flood tide c neap tide d boring semidiurnal tide e
An airplane flies at 40 m/s at an altitude of 50 m. The pilot drops a heavy package, which falls and strikes the ground. Where, approximately, does the package land?
A) beneath the plane B) 400 m behind the plane C) 500 m behind the plane D) more than 500 m behind the plane E) none of the above
High-crowned, abrasion-resistant chewing teeth are characteristic of _______, which eat
_______. Fill in the blank(s) with the appropriate word(s).
Normal oil withdrawal methods can leave as much as 95% of the total oil in the ground. Indicate whether the statement is true or false