Please answer this: Given the following passage "Apple announced a battery replacement program on November 14, 2003, a week before a high publicity stunt and website by the Neistat Brothers. The initial cost was US$99, and it was lowered to US$59 in 2005. One week later, Apple offered an extended iPod warranty for US$59. For the iPod Nano, soldering tools are needed because the battery is soldered onto the main board. Fifth generation iPods have their battery attached to the backplate with adhesive.", answer the following question. Note that the answer is present within the text. Question: What was a big problem for Ipods?
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Answer: soldering tools are needed because the battery is soldered onto the main board

Please answer this: Given the following passage "Certain staples of classical music are often used commercially (either in advertising or in movie soundtracks). In television commercials, several passages have become cliched, particularly the opening of Richard Strauss' Also sprach Zarathustra (made famous in the film 2001: A Space Odyssey) and the opening section "O Fortuna" of Carl Orff's Carmina Burana, often used in the horror genre; other examples include the Dies Irae from the Verdi Requiem, Edvard Grieg's In the Hall of the Mountain King from Peer Gynt, the opening bars of Beethoven's Symphony No. 5, Wagner's Ride of the Valkyries from Die Walkure, Rimsky-Korsakov's Flight of the Bumblebee, and excerpts of Aaron Copland's Rodeo.", answer the following question. Note that the answer is present within the text. Question: what artistic piece of work is mentioned last?
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Answer: Aaron Copland's Rodeo

Please answer this: Given the following passage "In 1807, Thomas Young was possibly the first to use the term "energy" instead of vis viva, in its modern sense. Gustave-Gaspard Coriolis described "kinetic energy" in 1829 in its modern sense, and in 1853, William Rankine coined the term "potential energy". The law of conservation of energy was also first postulated in the early 19th century, and applies to any isolated system. It was argued for some years whether heat was a physical substance, dubbed the caloric, or merely a physical quantity, such as momentum. In 1845 James Prescott Joule discovered the link between mechanical work and the generation of heat.", answer the following question. Note that the answer is present within the text. Question: If something is not a physical quantity, what is it known as?
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Answer:
caloric