A Trackball Looks Like the Tip of an Eraser Embedded

question 89

True/False

A trackball looks like the tip of an eraser embedded in the keyboard of a notebook computer.

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Definitions:

Vector

A line having a specific length and direction.

Magnitude

A numerical value assigned to the size or amount of a physical quantity (such as force, mass, or electric current) without regard to its direction.

Direction

A course along which someone or something moves.

Right Triangle

A triangle that contains a right angle.