For the Vectors Shown in the Figure, Find the Magnitude

question 80

Multiple Choice

For the vectors shown in the figure, find the magnitude and direction of ×
, assuming that the quantities shown are accurate to two significant figures.

• A) 26, directed into the plane
• B) 26, directed out of the plane
• C) 31, directed on the plane
• D) 31, directed into the plane
• E) 31, directed out of the plane

---

Definitions:

Superposition

A principle in geology stating that in an undeformed sequence of sedimentary rocks, each layer is older than the one above it and younger than the one below it.

Cross-Cutting Relations

The principle that a geologic unit or feature is older than a rock or feature that crosscuts it.

Igneous Intrusion

The process where magma from the Earth's mantle cuts through or intrudes into the Earth's crust, eventually cooling and solidifying to form igneous rock.

Cross-Cutting Relations

A principle in geology that an igneous intrusion or fault must be younger than the rocks it intrudes or displaces.