In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

Q: This force is represented by a first derivative with respect to position in the harmonic oscillator equation. In one model, this force stems from tiny electrostatic repulsions. It can be understood as the parallel shear component of the contact force, whose other component is typically calculated as mg cosine theta. It is calculated from a coefficient, symbolized mu, multiplied by the normal force. Rolling motion is affected by the "kinetic" type of this force, which is known as "drag" in fluids. For 10 points, name this force that resists the motion of objects against one another.

A: Science
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Q: This painting was parodied in Portrait: Twins, in which Yasumasa Morimura inserted himself into the central role. In its original version, a green curtain is drawn back at the top left corner, and the somewhat surprised woman at the right wears a light pink dress and carries a large floral arrangement. Blue and gold shoes, a gold bracelet, and a black choker are the only clothing worn by the central figure, modeled on prostitute Victorine Meurent. For 10 points, name this reclining nude which shocked the Salon of 1865 and was painted by Edouard Manet.

A: Fine Arts
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Q: Due to their icy composition, some of these objects such as 60588 Echeclus can be classified as both asteroids and comets due to their exhibition of coma. Although they possess a wide variety of colors making the classification of surface composition difficult, they are usually classified into two major color groups: very red and blue-grey. None have ever been imaged by spacecraft, but there is evidence that Saturns moon Phoebe may be a captured object of this type. Orbiting between Jupiter and Neptune, FTP, what icy planetoids, the best known of which is Chiron, and are named after half-men, half-horses from Greek mythology.

A:
Social Science
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