The book that set off the women's movement in the 1960s was written by betty friedan and was called? the masculine mystique silent spring the feminine mystique .

The Feminine Mystique is the right answer.

Betty Friedan was an american author and feminist who wrote The Feminine Mystique which lead to the Second Wave Feminism. The book discusses the problems of women and demands liberty, equal rights and equal wages for them. It challenged the belief of the time that "fulfillment as a woman had only one definition for American women after 1949—the housewife-mother." The book drew large numbers of women particularly the white-middle class women to the feminist cause.

this is poiselle's equation from fluid mechanic in physics. mech eng