$\text { Find the velocity vector in terms of } u _ { r } \text { and } u _ { \theta } \text {. }$

question 37

Multiple Choice

$\text { Find the velocity vector in terms of } u _ { r } \text { and } u _ { \theta } \text {. }$
- $\mathrm { r } = \mathrm { a } ( 2 - \cos \theta )$ and $\frac { \mathrm { d } \theta } { \mathrm { dt } } = 7$

• A) \(\mathbf { v } = ( 7 a \sin \theta ) \mathbf { u } _ { \mathrm { r } } + 7 \mathrm { a } ( 2 - \cos \theta ) \mathbf { u } _ { \theta }\)
• B) \(\mathbf { v } = ( 7 a \cos \theta ) \mathbf { u } _ { \mathrm { r } } + 7 \mathrm { a } ( 2 - \sin \theta ) \mathbf { u } _ { \theta }\)
• C) \(\mathbf { v } = 7 a ( 2 - \cos \theta ) \mathbf { u } _ { \mathbf { r } } + ( 7 \mathrm { a } \sin \theta ) \mathbf { u } _ { \theta }\)
• D) \(\mathbf { v } = ( 2 a \sin \theta ) \mathbf { u } _ { \mathrm { r } } + 2 \mathrm { a } ( 7 - \cos \theta ) \mathbf { u } _ { \theta }\)

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Definitions:

Proteins

Large biomolecules consisting of one or more long chains of amino acid residues, crucial for structural, enzymatic, and regulatory functions in living organisms.

Chromatid

One of the two identical halves of a duplicated chromosome, joined together at their centromeres before cell division.

Proteins

Large, complex molecules made up of amino acids that play essential roles in the body, including structural, enzymatic, and regulatory functions.

Hemolyzed

Refers to the bursting or destruction of red blood cells, leading to the release of hemoglobin into the surrounding fluid.