The total charge flowing through a device with a current of 15.0 A for 30 seconds is 450 C. This charge corresponds to approximately 2.81 x 10^{21} electrons, calculated using the charge of a single electron. These calculations illustrate the connection between electric current and the flow of electrons.
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The travel imagery in part 46 of "Song of Myself" enhances the poem's themes by suggesting a sense of expansiveness, illustrating the journey within oneself, and reminding readers of life's impermanence. These elements encourage personal growth and self-exploration. Whitman's use of travel serves as a metaphor for both physical and emotional journeys. ;