The Vector $\overrightarrow { \mathrm { A } }$ Has Components +5 and +7 Along the X and Y

question 48

Multiple Choice

The vector $\overrightarrow { \mathrm { A } }$ has components +5 and +7 along the x and y axes respectively.If the vector is now rotated 90 degrees counterclockwise relative to the original axes,the vector's components are now

• A)-7;-5.
• B)7;-5.
• C)-7;5.
• D)7;5.
• E)7;0.

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Definitions:

Reaction

A process that leads to the transformation of one set of chemical substances to another.

Acid Catalyst

A substance that increases the rate of a reaction by donating protons (H+) without being consumed in the process.

Reaction

A chemical process in which substances interact to form new products, involving changes in chemical bonds.

Cyanohydrin

Organic compounds with a nitrile and a hydroxyl functional group attached to the same carbon atom.