Volume 2 : 3 ratio of the volumes of the sphere and cylinder is credited to Archimedes. The volume of a sphere is the integral of an infinite number of infinitesimally small circular disks of thickness "dx". The calculation for the volume of a sphere with center 0 and radius "r" is as follows. The surface area of the circular disk is formula_10. The radius of the circular disks, defined such that the x-axis cuts perpendicularly through them, is or where y or z can be taken to represent the radius of a disk at a particular x value. Using y
The Princess Diaries, Volume X: Forever Princess The Princess Diaries, Volume X: Forever Princess The Princess Diaries, Volume X: Forever Princess is a young adult book in the "Princess Diaries" series. Written by Meg Cabot, it was released on January 6, 2009 by Harper Collins Publishers. The book was released in the UK on January 2, 2009, and called "The Princess Diaries: Ten out of Ten". Two years after the , Mia finds herself preparing for her 18th birthday party, her prom, and her high school graduation within the space of a week. She is in a stable relationship with J.P., has become good friends with Lana,