On Occasion,the Notation = [A,θ] Will Be a Shorthand

question 43

Multiple Choice

On occasion,the notation = [A,θ] will be a shorthand notation for .
-If vector Is added to vector ,the result is a third vector that is perpendicular toAnd has a magnitude equal to 3 What is the ratio of the magnitude of To that of ?

• A)1.8
• B)2.2
• C)3.2
• D)1.3
• E)1.6

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Definitions:

Spruce Budworm

A forest pest that feeds on the needles of spruce and fir trees, often causing significant damage to forests.

Dutch Elm Disease

Dutch Elm Disease is a fungal disease spread by bark beetles, primarily affecting elm trees, leading to foliage wilting, branch dieback, and potentially the death of the tree.

Chestnut Blight

A fungal disease caused by Cryphonectria parasitica, which has devastated chestnut trees in North America by causing cankers that girdle and kill the trees.

Net Productivity

is the rate at which energy or biomass accumulates in an ecosystem's producers, after subtracting the energy used in respiration, representing the amount of new biological material.