Vector a Has a Magnitude of 3

question 14

Multiple Choice

Vector A has a magnitude of 3.0 units and makes an angle of −90.0º with the positive x-axis. Vector B has a magnitude of 4.0 units and makes an angle of −120º with the positive x-axis. What is the magnitude of the vector sum A + B?

• A) 1.0 units
• B) 6.8 units
• C) 7.0 units
• D) 5.0 units

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Definitions:

Iodine Atoms

Fundamental units of the chemical element iodine, essential for thyroid hormone production in living organisms.

Exocrine Function

The activity of exocrine glands that release their secretions through ducts to the exterior of the body or into a body cavity.

Endocrine Function

The activity of glands that secrete hormones directly into the bloodstream, regulating diverse bodily functions.

Mineralocorticoids

A class of corticosteroids, which are hormones produced by the adrenal cortex, involved in the regulation of electrolyte and water balance in the body.