Problem: Capacitor:

Capacitors, especially ceramic capacitors, and older designs such as paper capacitors, can absorb sound waves resulting in a microphonic effect. Vibration moves the plates, causing the capacitance to vary, in turn inducing AC current. Some dielectrics also generate piezoelectricity. The resulting interference is especially problematic in audio applications, potentially causing feedback or unintended recording. In the reverse microphonic effect, the varying electric field between the capacitor plates exerts a physical force, moving them as a speaker. This can generate audible sound, but drains energy and stresses the dielectric and the electrolyte, if any.

 What is the effect called when capacitors don't absorb sound waves?
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A: unanswerable


Problem: Marvel Comics:

In 1968, while selling 50 million comic books a year, company founder Goodman revised the constraining distribution arrangement with Independent News he had reached under duress during the Atlas years, allowing him now to release as many titles as demand warranted. Late that year he sold Marvel Comics and his other publishing businesses to the Perfect Film and Chemical Corporation, which continued to group them as the subsidiary Magazine Management Company, with Goodman remaining as publisher. In 1969, Goodman finally ended his distribution deal with Independent by signing with Curtis Circulation Company.

How many comic books had Goodman sold by 1968?
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A: unanswerable


Problem: Predation:

A lone naked human is at a physical disadvantage to other comparable apex predators in areas such as speed, bone density, weight, and physical strength. Humans also lack innate weaponry such as claws. Without crafted weapons, society, or cleverness, a lone human can easily be defeated by fit predatory animals, such as wild dogs, big cats and bears (see Man-eater). However, humans are not solitary creatures; they are social animals with highly developed social behaviors. Early humans, such as Homo erectus, have been using stone tools and weapons for well over a million years. Anatomically modern humans have been apex predators since they first evolved, and many species of carnivorous megafauna actively avoid interacting with humans; the primary environmental competitor for a human is other humans. The one subspecies of carnivorous megafauna that does interact frequently with humans in predatory roles is the domestic dog, but usually as a partner in predation especially if they hunt together. Cannibalism has occurred in various places, among various cultures, and for various reasons. At least a few people, such as the Donner party, are said to have resorted to it in desperation.

What physical disadvantages do humans have against other apex predators?
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A: speed, bone density, weight, and physical strength


Problem: University of Kansas:

In the U.S. News & World Report's "America’s Best Colleges" 2016 issue, KU’s School of Engineering was ranked tied for 90th among national universities.

Who published America's Best Colleges in 2015?
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A:
unanswerable