If the Vectors $\overrightarrow { \mathrm { A } }$ And $\vec { B }$

question 33

Multiple Choice

If the vectors $\overrightarrow { \mathrm { A } }$ and $\vec { B }$ have magnitudes of 10 and 11,respectively,and the scalar product of these two vectors is -100,what is the magnitude of the sum of these two vectors?

• A)6.6
• B)4.6
• C)8.3
• D)9.8
• E)7.6

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Definitions:

Antioxidant Molecules

Compounds that prevent oxidation, a chemical reaction that can produce free radicals and thus damage cells.

Free Radicals

Highly reactive molecules with unpaired electrons that can cause damage to cells and DNA, playing a role in aging and various diseases.

Aerobic Respiration

Oxygen-requiring cellular respiration; breaks down organic molecules (particularly glucose) and produces ATP, carbon dioxide, and water. Includes glycolysis, acetyl–CoA formation, the Krebs cycle, and electron transfer phosphorylation.

Electron Transfer Chains

Biological pathways through which electrons are transferred from electron donors to electron acceptors, playing a crucial role in cellular respiration and photosynthesis.