If the Lever Arm of a 9-N Force Is 6

question 55

Multiple Choice

If the lever arm of a 9-N force is 6 m, what is the torque acting on the object due to this force?

• A) 54 Nm
• B) 1.5 Nm
• C) 0.67 Nm
• D) 15 Nm
• E) cannot be determined

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Definitions:

Exocytosis

A process by which cells release substances to the external environment by vesicles fusing with the plasma membrane.

Secretory Vesicles

Membrane-bound vesicles containing substances that are to be secreted or transported out of the cell.

Plasma Membrane

The biological membrane that separates the interior of all cells from the outside environment, regulating the passage of substances in and out of cells.

Receptor-Mediated Endocytosis

A process by which cells internalize molecules (e.g., hormones, nutrients) by the inward budding of plasma membrane vesicles containing proteins with receptor sites specific to the molecules being internalized.