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- Biology Unit 2 Test Flashcards - Quizlet
Study with Quizlet and memorize flashcards containing terms...
- Biology Unit 2 Test Flashcards - Quizlet
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23 Νοε 2022 · In mathematics and physics, a scalar is a quantity that only has magnitude (size), while a vector has both magnitude and direction. Examples of scalar quantities include pure numbers, mass, speed, temperature, energy, volume, and time.
A unit vector is a vector with a magnitude of 1 that points in a specific direction. It's often used to describe direction without affecting scale. The unit vector of a given vector v is represented as v̂ and is calculated by dividing each component of v by its magnitude |v|.
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From the smallest building blocks of cells to how those structures allow cells to move and nourish themselves, cells are the focus of this unit. These questions will test your knowledge of how substances enter and exit cells and how cellular components are organized.
