The total charge delivered by a current of 15.0 A over 30 seconds is 450 C. Using the charge of a single electron, we find that approximately 2.81 x 10^21 electrons flow through the device. This calculation helps illustrate the relationship between current, time, and the flow of electrons in electrical devices.
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Rhea is known in Greek mythology as the mother of gods . She was the wife of Cronus and mother to many of the Olympian gods and goddesses such as Zeus, Hera, and Poseidon. Therefore, the correct answer is a. mother of gods .
The mother of Jesus Christ is known as Mary . She is a central figure in Christianity, revered as the mother of Jesus. Therefore, the correct answer is b. Mary .
Julia Ward Howe was an American . She was a prominent American poet and social activist, known for writing 'The Battle Hymn of the Republic.' Therefore, the correct answer is d. American .
Mother's Day was first announced as a formal holiday in the USA in 1914 . It was declared by President Woodrow Wilson, recognizing the second Sunday in May as a national holiday to honor mothers. Therefore, the correct answer is d. 1914 .
In 1914, the American president was Woodrow Wilson . He served as the 28th president of the United States from 1913 to 1921. Therefore, the correct answer is d. Wilson .
The UK does not celebrate Mother's Day on the second Sunday of May. Instead, they observe Mothering Sunday, which falls on the fourth Sunday in Lent, usually in March or early April. Therefore, the correct answer is b. The UK .