Find the Unit Vector in the Direction of the Given $\mathbf { u } = \langle - 4,3 \rangle$

question 99

Multiple Choice

Find the unit vector in the direction of the given vector. Write your answer in the indicated form.
-Let $\mathbf { u } = \langle - 4,3 \rangle$ . Find the unit vector in the direction of $\mathbf { u }$ , and write your answer as a linear combination of the standard unit vectors $\mathrm { i }$ and $\mathbf { j }$ .

• A) \(- \frac { 4 } { 7 } i + \frac { 3 } { 7 } j\)
• B) \(\langle 1,1 \rangle\)
• C) \(- \frac { 4 } { 25 } \mathrm { i } + \frac { 3 } { 25 } \mathrm { j }\)
• D) \(- \frac { 4 } { 5 } \mathrm { i } + \frac { 3 } { 5 } \mathrm { j }\)

Identify the roles of rods and cones in visual processing.

Explain the neural pathways involved in visual processing, including the optic nerve and ganglion cells.

Understand the psychological principles related to vision, such as the blind spot and accommodation.

Describe the mechanisms of pupil dilation and constriction.

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Definitions:

Syncline

A geological structure where rock layers fold downward, creating a U-shaped valley.

Monocline

A geological fold in which all layers are inclined in the same direction, forming a step-like structure in the Earth's strata.

Regional Metamorphism

Metamorphism affecting large areas of the crust, typically as a result of high pressures and temperatures associated with tectonic processes.

Contact Metamorphism

Metamorphism that occurs when rock is heated and chemically altered by the close proximity of magma.