Q: Thackeray's 'Vanity Fair' was first published in which decade of the 19th century?
A: 1840s

Q: Who was the first American in space
A: alan shepard

Q: What is the name for the phenomenon that occurs, e.g., in magnetic and ferromagnetic materials and in the elastic, electric, and magnetic behaviour of materials, in which a lag occurs between the application or the removal of a force or field and its subsequent effect?
A:
hysteresis