question_id
stringlengths
2
5
question
stringlengths
11
120
document_title
stringlengths
2
81
answer
stringlengths
2
1.08k
label
class label
2 classes
Q534
what creates sonic boom
Sonic boom
and an observer behind the source .
00
Q534
what creates sonic boom
Sonic boom
A sonic boom produced by an aircraft moving at M=2.92, calculated from the cone angle of 20 degrees.
00
Q534
what creates sonic boom
Sonic boom
An observer hears the boom when the shock wave, on the edges of the cone, crosses his or her location.
00
Q534
what creates sonic boom
Sonic boom
Mach cone angle
00
Q534
what creates sonic boom
Sonic boom
A sonic boom is the sound associated with the shock waves created by an object traveling through the air faster than the speed of sound.
11
Q534
what creates sonic boom
Sonic boom
Sonic booms generate enormous amounts of sound energy, sounding much like an explosion .
00
Q534
what creates sonic boom
Sonic boom
The crack of a supersonic bullet passing overhead is an example of a sonic boom in miniature.
00
Q536
what channel is jay leno on?
The Tonight Show with Jay Leno
The Tonight Show with Jay Leno is an American late-night talk show hosted by Jay Leno that initially aired from May 25, 1992 to May 29, 2009, and resumed production on March 1, 2010.
00
Q536
what channel is jay leno on?
The Tonight Show with Jay Leno
The fourth incarnation of the Tonight Show franchise made its debut on May 25, 1992, three days following Johnny Carson 's retirement as host of the program .
00
Q536
what channel is jay leno on?
The Tonight Show with Jay Leno
The program originates from NBC Studios in Burbank, California , and is broadcast Monday through Friday at 11:35 PM in the Eastern and Pacific time zones (10:35 PM Central / Mountain time).
00
Q536
what channel is jay leno on?
The Tonight Show with Jay Leno
Unlike Carson or his predecessor Jack Paar , Leno only once utilized a guest host, preferring to host the series by himself.
00
Q536
what channel is jay leno on?
The Tonight Show with Jay Leno
On April 26, 1999, the show began broadcasting in 1080i HDTV , becoming the first American nightly talk show to be shot in high definition.
00
Q536
what channel is jay leno on?
The Tonight Show with Jay Leno
The show is shot in 16:9 aspect ratio .
00
Q536
what channel is jay leno on?
The Tonight Show with Jay Leno
The series, which followed the same basic format as that of his predecessors (an opening monologue followed by comedy routines, interviews and performances), ran until May 29, 2009, after which Leno was succeeded by Conan O'Brien .
00
Q536
what channel is jay leno on?
The Tonight Show with Jay Leno
NBC signed Leno to a new deal for a nightly talk show in the 10:00 pm ET timeslot.
00
Q536
what channel is jay leno on?
The Tonight Show with Jay Leno
The primetime series, titled The Jay Leno Show , debuted on September 14, 2009, following a similar format to the Leno incarnation of Tonight.
00
Q536
what channel is jay leno on?
The Tonight Show with Jay Leno
Neither O'Brien's version of the program , which premiered June 1, 2009, nor The Jay Leno Show generated the ratings that NBC had expected.
00
Q536
what channel is jay leno on?
The Tonight Show with Jay Leno
The network decided to move a condensed 30-minute version of Leno's show to O'Brien's time slot, and O'Brien's Tonight Show a half-hour later.
00
Q536
what channel is jay leno on?
The Tonight Show with Jay Leno
This decision met with opposition from O'Brien, whose stint on The Tonight Show ended January 22, 2010, after which he began his own talk show on TBS .
00
Q536
what channel is jay leno on?
The Tonight Show with Jay Leno
The Tonight Show with Jay Leno then began its second and current incarnation, the sixth of the franchise, on March 1, 2010.
00
Q537
how is rfid tag powered
Radio-frequency identification
RFID chip next to a grain of rice.
00
Q537
how is rfid tag powered
Radio-frequency identification
This chip contains a radio-frequency electromagnetic field coil that modulates an external magnetic field to transfer a coded identification number when queried by a reader device.
00
Q537
how is rfid tag powered
Radio-frequency identification
This small type is incorporated in consumer products, and implanted in pets, for identification purposes.
00
Q537
how is rfid tag powered
Radio-frequency identification
Radio-frequency identification (RFID) is the wireless non-contact use of radio-frequency electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects.
00
Q537
how is rfid tag powered
Radio-frequency identification
The tags contain electronically stored information.
00
Q537
how is rfid tag powered
Radio-frequency identification
Some tags are powered and read at short ranges (a few meters) via magnetic fields ( electromagnetic induction ).
11
Q537
how is rfid tag powered
Radio-frequency identification
Others use a local power source such as a battery, or else have no battery but collect energy from the interrogating EM field, and then act as a passive transponder to emit microwaves or UHF radio waves (i.e., electromagnetic radiation at high frequencies).
11
Q537
how is rfid tag powered
Radio-frequency identification
Battery powered tags may operate at hundreds of meters.
11
Q537
how is rfid tag powered
Radio-frequency identification
Unlike a bar code , the tag does not necessarily need to be within line of sight of the reader, and may be embedded in the tracked object.
00
Q537
how is rfid tag powered
Radio-frequency identification
RFID tags are used in many industries.
00
Q537
how is rfid tag powered
Radio-frequency identification
An RFID tag attached to an automobile during production can be used to track its progress through the assembly line.
00
Q537
how is rfid tag powered
Radio-frequency identification
Pharmaceuticals can be tracked through warehouses.
00
Q537
how is rfid tag powered
Radio-frequency identification
Livestock and pets may have tags injected , allowing positive identification of the animal.
00
Q537
how is rfid tag powered
Radio-frequency identification
Since RFID tags can be attached to clothing, possessions, or even implanted within people , the possibility of reading personally-linked information without consent has raised privacy concerns.
00
Q538
how does fraud called the psyche mind
Id, ego and super-ego
Id, ego and super-ego are the three parts of the psychic apparatus defined in Sigmund Freud's structural model of the psyche ; they are the three theoretical constructs in terms of whose activity and interaction mental life is described.
00
Q538
how does fraud called the psyche mind
Id, ego and super-ego
According to this model of the psyche, the id is the set of uncoordinated instinctual trends; the super-ego plays the critical and moralizing role; and the ego is the organized, realistic part that mediates between the desires of the id and the super-ego.
00
Q538
how does fraud called the psyche mind
Id, ego and super-ego
The super-ego can stop you from doing certain things that your id may want you to do.
00
Q538
how does fraud called the psyche mind
Id, ego and super-ego
Even though the model is structural and makes reference to an apparatus, the id, ego and super-ego are functions of the mind rather than parts of the brain and do not correspond one-to-one with actual somatic structures of the kind dealt with by neuroscience .
00
Q538
how does fraud called the psyche mind
Id, ego and super-ego
The concepts themselves arose at a late stage in the development of Freud's thought: the "structural model" (which succeeded his "economic model" and "topographical model") was first discussed in his 1920 essay " Beyond the Pleasure Principle " and was formalized and elaborated upon three years later in his " The Ego and the Id ".
00
Q538
how does fraud called the psyche mind
Id, ego and super-ego
Freud's proposal was influenced by the ambiguity of the term " unconscious " and its many conflicting uses.
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
Air Force ROTC emblem
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
The Air Force Reserve Officer Training Corps (AFROTC) is one of the three primary commissioning sources for officers in the United States Air Force , the other two being the United States Air Force Academy (USAFA) and Air Force Officer Training School (OTS).
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
A subordinate command of the Air University within the Air Education and Training Command (AETC), AFROTC is aligned under the Jeanne M. Holm Center for Officer Accessions and Citizen Development at Maxwell AFB , Alabama.
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
The Holm Center, formerly known as the Air Force Officer Accession and Training Schools (AFOATS), retains direct responsibility for both AFROTC and OTS.
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
AFROTC is the largest and oldest source of commissioned officers for the U.S. Air Force.
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
AFROTC's stated mission is to produce quality leaders for the U.S. Air Force.
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
AFROTC units are located on 144 college and university campuses with 984 additional institutions of higher learning participating in cross-town agreements that allow their students to attend AFROTC classes at a nearby "host" college or university .
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
According to AFOATS HQ, in 2006, AFROTC commissioned 2,083 USAF Second Lieutenants , with AFROTC enrollment ranging from 23,605 in 1985 to 10,231 in 1993, and around 13,000 enrolled today.
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
AFROTC units at colleges and universities are called "detachments," and are typically headed by an active duty USAF officer in the rank of colonel or lieutenant colonel who functions as both the Detachment Commander for USAF purposes and with the nominal title of Professor of Aerospace Studies (PAS) within the institution's academic community.
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
Most colleges and universities will designate the AFROTC detachment as the Department of Aerospace Studies.
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
The PAS is assisted by three to four Assistant Professors of Aerospace Studies (APAS), all active duty USAF officers in the ranks of major or captain .
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
Three USAF non-commissioned officers and one senior non-commissioned officer will typically provide military administrative support and are often augmented by one to two civilian staff support employees of the academic institution.
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
Within AFROTC detachments, the students (referred to as "cadets") are organized into wings, groups, squadrons, and flights, mirroring the USAF functional wing structure.
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
The AFROTC detachment's cadet wing or cadet group is separated into two divisions: the General Military Course (GMC) consisting of the first two years of training, and the Professional Officer Course (POC) consisting of the last two years of training.
00
Q539
what does CTA stand for afrotc
Air Force Reserve Officer Training Corps
The AFROTC program is also divided into two training functions: the Academic Classroom Program (Aerospace Studies classes) and Cadet Activities (i.e., Leadership Laboratory, Physical Training, and other training).
00
Q541
how is paper measured
Paper density
Paper density (also known as basis weight and grammage) is a term used in the pulp and paper industry and also for fabric industry to denote a measure of mass of the product per unit of area for a type of fabric , paper or paperboard .
00
Q541
how is paper measured
Paper density
The term "density" is not used in its traditional sense of mass per unit volume .
00
Q541
how is paper measured
Paper density
"Paper density", rather, is a measure of the area density .
00
Q541
how is paper measured
Paper density
Paper products that let little or no light pass through (e.g. poster board) are considered dense or heavy.
00
Q541
how is paper measured
Paper density
Paper products that allow some light to pass through (e.g. tissue paper) are considered lightweight.
00
Q541
how is paper measured
Paper density
In the pulp and paper industry, it is common to set a commercial paper machine to produce paper to a target paper density.
00
Q541
how is paper measured
Paper density
Paper density can also be used to distinguish paper from paperboard as the latter usually has a grammage greater than 134 g/m2.
00
Q541
how is paper measured
Paper density
Two ways of expressing paper density are commonly used:
00
Q541
how is paper measured
Paper density
Expressed in grams per square meter (g/m2), paper density is also known as grammage.
00
Q541
how is paper measured
Paper density
This is the measure used in most parts of the world.
00
Q541
how is paper measured
Paper density
Expressed in terms of the mass (expressed as weight) per number of sheets, it is known as basis weight.
00
Q541
how is paper measured
Paper density
The convention used in the United States and a few other countries using US paper sizes is pounds of a ream of 500 (or in some cases 1000) sheets of a given (raw, still uncut) basis size.
00
Q541
how is paper measured
Paper density
Japanese paper is expressed as the weight in kg of 1000 sheets.
00
Q544
how does candace parker write
Candace Parker
Candace Nicole Parker (born April 19, 1986) is an American basketball player for the WNBA 's Los Angeles Sparks and UMMC Ekaterinburg of Russia .
00
Q544
how does candace parker write
Candace Parker
She is the younger sister of NBA player Anthony Parker .
00
Q544
how does candace parker write
Candace Parker
She attended the University of Tennessee and was drafted by the Sparks in 2008 .
00
Q544
how does candace parker write
Candace Parker
She may be best known for being the first woman to dunk in an NCAA tournament game and the first woman to dunk twice in a college game—she set both milestones as a redshirt freshman on March 19, 2006.
00
Q544
how does candace parker write
Candace Parker
She also became only the second player to dunk in a WNBA game on June 22, 2008.
00
Q544
how does candace parker write
Candace Parker
A versatile player, she is mainly a forward, but was listed on Tennessee's roster as a forward, center, and guard.
00
Q544
how does candace parker write
Candace Parker
She was a starter on the Lady Vols basketball team, winners of the 2007 and 2008 NCAA championships.
00
Q544
how does candace parker write
Candace Parker
Parker won the 2009 Nickelodeon Kids' Choice award as the favorite female athlete in the sports category.
00
Q544
how does candace parker write
Candace Parker
And she was a guest star on Figure It Out .
00
Q545
what food group is alcohol
Food guide pyramid
A food guide pyramid is a pyramid shaped guide of healthy foods divided into sections to show the recommended intake for each food group .
00
Q545
what food group is alcohol
Food guide pyramid
The first food pyramid was published in Sweden in 1974.
00
Q545
what food group is alcohol
Food guide pyramid
The most widely known food pyramid was introduced by the United States Department of Agriculture in the year 1992, was updated in 2005, and then replaced in 2011 .
00
Q545
what food group is alcohol
Food guide pyramid
Over 25 other countries and organisations have also published food pyramids.
00
Q546
what jobs did hans christian anderson have besides writing?
Hans Christian Andersen
Hans Christian Andersen (; often referred to in Scandinavia as H. C. Andersen; April 2, 1805August 4, 1875) was a Danish author and poet.
00
Q546
what jobs did hans christian anderson have besides writing?
Hans Christian Andersen
Although a prolific writer of plays, travelogues, novels, and poems, Andersen is best remembered for his fairy tales , a literary genre he so mastered that he himself has become as mythical as the tales he wrote.
00
Q546
what jobs did hans christian anderson have besides writing?
Hans Christian Andersen
Andersen's popularity is not limited to children; his stories—called , or "fantastic tales"—express themes that transcend age and nationality.
00
Q546
what jobs did hans christian anderson have besides writing?
Hans Christian Andersen
During his lifetime he was acclaimed for having delighted children worldwide and was feted by royalty.
00
Q546
what jobs did hans christian anderson have besides writing?
Hans Christian Andersen
Andersen's fairy tales, which have been translated into more than 125 languages, have become culturally embedded in the West's collective consciousness, readily accessible to children, but presenting lessons of virtue and resilience in the face of adversity for mature readers as well.
00
Q546
what jobs did hans christian anderson have besides writing?
Hans Christian Andersen
They have inspired motion pictures, plays, ballets, and animated films.
00
Q548
What culture is it that children do not look adults in the eyes?
Eye contact
Two figures locking eyes in Caravaggio 's The Fortune Teller
00
Q548
What culture is it that children do not look adults in the eyes?
Eye contact
Eye contact occurs when "two people look at each other's eyes at the same time."
00
Q548
What culture is it that children do not look adults in the eyes?
Eye contact
In human beings , eye contact is a form of nonverbal communication and is thought to have a large influence on social behavior .
00
Q548
What culture is it that children do not look adults in the eyes?
Eye contact
Coined in the early to mid-1960s, the term has come in the West to often define the act as a meaningful and important sign of confidence and social communication.
00
Q548
What culture is it that children do not look adults in the eyes?
Eye contact
The customs and significance of eye contact vary widely between cultures, with religious and social differences often altering its meaning greatly.
00
Q548
What culture is it that children do not look adults in the eyes?
Eye contact
The study of eye contact is sometimes known as oculesics .
00
Q549
how do you get bed bugs
Bed bug
Bed bugs are parasitic insects of the cimicid family that feed exclusively on blood .
00
Q549
how do you get bed bugs
Bed bug
The term most commonly refers to members of the genus Cimex of which Cimex lectularius, the common bed bug, is the best known as it prefers to feed on human blood although other Cimex species are specialized to other animals, e.g., bat bugs, C. pipistrelli (Europe), C. pilosellus (western US), and C. adjunctus (entire eastern US).
00
Q549
how do you get bed bugs
Bed bug
The name of the "bed bug" is derived from the preferred habitat of Cimex lectularius: warm houses and especially nearby or inside of beds and bedding or other sleep areas.
00
Q549
how do you get bed bugs
Bed bug
Bed bugs are mainly active at night, but are not exclusively nocturnal .
00
Q549
how do you get bed bugs
Bed bug
They usually feed on their hosts without being noticed.
00
Q549
how do you get bed bugs
Bed bug
A number of adverse health effects may result from bed bug bites, including skin rashes , psychological effects, and allergic symptoms .
00
Q549
how do you get bed bugs
Bed bug
Diagnosis involves both finding bed bugs and the occurrence of compatible symptoms.
00