Input: Read this: By that time, the majority of black people in the United States were native-born, so the use of the term "African" became problematic. Though initially a source of pride, many blacks feared that the use of African as an identity would be a hindrance to their fight for full citizenship in the US. They also felt that it would give ammunition to those who were advocating repatriating black people back to Africa. In 1835, black leaders called upon Black Americans to remove the title of "African" from their institutions and replace it with "Negro" or "Colored American". A few institutions chose to keep their historic names, such as the African Methodist Episcopal Church. African Americans popularly used the terms "Negro" or "colored" for themselves until the late 1960s.
Question: Why did blacks fear to identify as African?

Output: would be a hindrance to their fight for full citizenship in the US.

QUES: Film speed is found from a plot of optical density vs. log of exposure for the film, known as the Dlog H curve or HurterDriffield curve. There typically are five regions in the curve: the base + fog, the toe, the linear region, the shoulder, and the overexposed region. For black-and-white negative film, the "speed point" m is the point on the curve where density exceeds the base + fog density by 0.1 when the negative is developed so that a point n where the log of exposure is 1.3 units greater than the exposure at point m has a density 0.8 greater than the density at point m. The exposure Hm, in lux-s, is that for point m when the specified contrast condition is satisfied. The ISO arithmetic speed is determined from:

What is film speed combined with to produce optical density?
What is the answer?
ANS: unanswerable

QUES: In May 2005, the first high definition video conferencing systems, produced by LifeSize Communications, were displayed at the Interop trade show in Las Vegas, Nevada, able to provide video at 30 frames per second with a 1280 by 720 display resolution. Polycom introduced its first high definition video conferencing system to the market in 2006. As of the 2010s, high definition resolution for videoconferencing became a popular feature, with most major suppliers in the videoconferencing market offering it.
Where was Polycom displayed in May 2005?

ANS: unanswerable

In 2014 artist Jack White sold 40,000 copies of his second solo release, Lazaretto, on vinyl. The sales of the record beat the largest sales in one week on vinyl since 1991. The sales record was previously held by Pearl Jam's, Vitalogy, which sold 34,000 copies in one week in 1994. In 2014, the sale of vinyl records was the only physical music medium with increasing sales with relation to the previous year. Sales of other mediums including individual digital tracks, digital albums and compact discs have fallen, the latter having the greatest drop-in-sales rate.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Whom set the most recent sales record of vinyl records since 1991?
Ah, so.. Jack White

Question: In 1971, the United States Department of Health, Education, and Welfare approached Marvel Comics editor-in-chief Stan Lee to do a comic book story about drug abuse. Lee agreed and wrote a three-part Spider-Man story portraying drug use as dangerous and unglamorous. However, the industry's self-censorship board, the Comics Code Authority, refused to approve the story because of the presence of narcotics, deeming the context of the story irrelevant. Lee, with Goodman's approval, published the story regardless in The Amazing Spider-Man #9698 (MayJuly 1971), without the Comics Code seal. The market reacted well to the storyline, and the CCA subsequently revised the Code the same year.
Try to answer this question if possible: What issue was Marvel asked to tackle for this agency?
Answer: drug abuse

Problem: The introduction of the community school model in the 1970s controversially removed the denominational basis of the schools, but religious interests were invited to be represented on the Boards of Management. Community schools are divided into two models, the community school vested in the Minister for Education and the community college vested in the local Education and Training Board. Community colleges tended to be amalgamations of unviable local schools under the umbrella of a new community school model, but community schools have tended to be entirely new foundations.
What didn't the community school system remove from the comprehensive school model?
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Answer:
unanswerable