When a current of 15.0 A flows for 30 seconds, a total charge of 450 C is delivered. This results in approximately 2.81 × 10^21 electrons flowing through the device. The charge of a single electron is approximately 1.6 × 10^-19 C, which helps in calculating the total number of electrons.
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Exporting is the process of shipping goods to another country, essential for international trade. It allows businesses to expand into foreign markets and increase revenues. In summary, exporting involves sending products overseas, while importing refers to receiving goods from abroad. ;