A Particle Moving with a Constant Acceleration Has a Velocity

question 27

Multiple Choice

A particle moving with a constant acceleration has a velocity of 20 cm/s when its position is x = 10 cm. Its position 7.0 s later is x = −30 cm. What is the acceleration of the particle?

• A) −7.3 cm/s²
• B) −8.9 cm/s²
• C) −11 cm/s²
• D) −15 cm/s²
• E) −13 cm/s²

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Definitions:

Metaphase

A stage of cell division (mitosis and meiosis) where chromosomes align in the middle of the cell before being separated into each of the two daughter cells.

Interphase

The phase of the cell cycle in which the cell prepares for division by replicating its DNA and increasing in size, consisting of the G1, S, and G2 phases.

Membrane Channel Protein

Proteins that allow the passage of ions and molecules across cell membranes.

Phospholipid Bilayer

A critical component of all cell membranes, consisting of two layers of phospholipids which provide barriers and pathways for substances entering or exiting the cell.