Find (A) the Dot Product of the Two Vectors and (B)

question 2

Multiple Choice

Find (a) the dot product of the two vectors and (b) the angle between the two vectors. $5 i$ and $4 j$

• A) \(0,0 ^ { \circ } 0 ^ { \prime }\)
• B) \(\text { 20, } 0 ^ { \circ } 0 ^ { \prime }\)
• C) \(1,180 ^ { \circ } 0 ^ { \prime }\)
• D) \(0,180 ^ { \circ } 0 ^ { \prime }\)
• E) \(20,180 ^ { \circ } 0 ^ { \prime }\)

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Definitions:

Lactate Ion

The lactate ion is a negatively charged molecule (anion) produced by the loss of a hydrogen atom from lactic acid, commonly formed during anaerobic respiration.

Lactic Acid

A natural organic acid present in milk and produced in the muscles during intense activity.

Blood Ph

A measure of the acidity or alkalinity of the blood, typically maintaining around 7.35 to 7.45, making it slightly basic.

Hydrogen Ions

Positively charged ions (H+) that form when a hydrogen atom loses its electron, crucial in acid-base chemistry.