The Mass of the Part of a Metal Rod That $S = 4 x ^ { 2 }$

question 14

Multiple Choice

The mass of the part of a metal rod that lies between its left end and a point x meters to the right is $S = 4 x ^ { 2 }$ Find the linear density when $x$ is $3 \mathrm {~m}$ .

• A) 20
• B) 24
• C) 18
• D) 12
• E) 4

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Definitions:

Pinocytic Vesicles

Small, fluid-filled sacs within the cell that are involved in the process of pinocytosis, allowing for the intake of liquid and dissolved substances.

Transport

The act of moving people or goods from one location to another via vehicles, containers, or by other means.

Cell Membrane

The semipermeable membrane surrounding the cytoplasm of a cell, controlling the movement of substances in and out.

Cytoplasm

The jelly-like material within a cell, excluding the nucleus, where various cellular processes occur, including enzyme reactions and nutrient processing.