Force is a vector. What then is a vector? Think about how you would give directions to a friend. You would not say, just walk half a mile. The person may walk a half mile in the wrong direction! More information is needed. You may say, follow this particular road for a half mile. You may say, look for the green house on Sumter St. In both examples, you provided a direction. You also gave the distance. In other words, you provided a vector. You did not just give a distance. Both pieces of information are needed to find a location. This is just like describing forces. To explain forces, both size and direction are needed. Notice the girl in Figure 1.1. She is pushing the swing away from herself. Thats the direction of the force. She can give the swing a strong push or a weak push.

Question: "Why is more info needed to describe a vector?"

OPTIONS:
- no
- yes

Answer: "The person may defy gravity"

Response: no

{ { plot } } In 1964 , in the peak of Beatlemania , a reluctant John Lennon is persuaded by manager Brian Epstein to meet Freddie Lennon , the father who abandoned him seventeen years earlier , with the press in attendance . When they meet , John accuses his father of abandoning him , but his father says that '' he left it up to John . '' John and Brian quickly leave the meeting . The movie then jumps to 1967 , after Brian Epstein has died . The Beatles are giving a press conference about their new film, Magical Mystery Tour . John is skeptical about the film , but Paul ( ( ( Andrew Scott convinces him to go through with the idea . John then invites his father to his mansion to live with him . Freddie Lennon arrives and meets his grandson , Julian . Sitting with his wife , John reads the criticism of Magical Mystery Tour , while comparing his wife to Brigitte Bardot , whom he says he will meet after he returns from India . John finds a letter addressed to him , with the word '' Breathe '' written on it . Later , after finding his father in a neighbor's house , Freddie reveals that he has a 19 year old girlfriend named Pauline , with whom he wants to live . Lennon accuses his father of leaving him again , and then leaves , after telling his father that he wo n't live with him anymore . After meeting Maharishi Mahesh Yogi , the Beatles quickly return to London , and in a press conference they say they made a mistake when they trusted Maharishi . The journalists are curious about the Beatles new business -- Apple Records .

Question: "What is the name of the man John Lennon invites to live in his mansion?"

Response: "Andrew Scott"
OPTIONS:
- no
- yes

A: no

Problem: The documentary portrays a behind-the-scenes look at the poor state of Argentina's civil aviation , and puts the blame on the Argentine Air Force . The Air Force has been in control of air traffic operations since the military takeover of General Juan Carlos Ongan a in 1966 . The producer/director , Enrique Pi eyro , claims Argentina and Nigeria are the only countries whose air force controls and regulates the airline industry . Pi eyro , a former Argentine airline pilot , makes his case in the documentary using diagrams , 3D animations , interviews , hidden cameras in the control tower , and a few props . For example , at one point he spills out a bag of plastic airplanes and equates it to the number of planes the air force has lost due to negligence . The film is heavily based on the Austral L neas A reas Flight 2553 plane crash . Enrique Pi eyro takes his camera , secretly , into the control tower of the Ministro Pistarini International Airport also-known-as Ezeiza , the international airport at Buenos Aires .

Question: "Which country's Air Force has been in control of air traffic operations since 1966?"

Answer: "Argentina"

OPTIONS:
- no
- yes
Answer: yes

Question:
Gravitational Potential Energy is affected by position. Like the leaves on trees, anything that is raised up has the potential to fall. It has potential energy. You can see examples of people with gravitational potential energy in 1.5 Figure below. Gravitational potential energy depends on two things. It depends on its weight, because a large falling rock can do more damage than a leaf falling from a tree. It also depends on its height above the ground. Like the skateboarder, the higher the ramp, the faster he will be going when he reaches the bottom. Like all energy, gravitational potential energy has the ability to do work. In this case, weight has the potential to deliver a force. More important for us is that it has the ability to cause change. What kind of change you may ask? Gravitational potential energy has the ability to cause motion. After reading the above, is "The object would need to be right on the ground" the correct answer to the question "What kind of position would an object need to possess gravitational potential energy?"? OPTIONS:
- no
- yes

Answer:
no

At the conference room table was White House Deputy Chief of Staff Joshua Bolten. Bolten watched the exchanges and, after what he called "a quiet moment,"suggested that the Vice President get in touch with the President and confirm the engage order. Bolten told us he wanted to make sure the President was told that the Vice President had executed the order. He said he had not heard any prior discussion on the subject with the President. The Vice President was logged calling the President at 10:18 for a twominute conversation that obtained the confirmation. On Air Force One, the President's press secretary was taking notes; Ari Fleischer recorded that at 10:20, the President told him that he had authorized a shootdown of aircraft if necessary. Minutes went by and word arrived of an aircraft down in Pennsylvania. Those in the shelter wondered if the aircraft had been shot down pursuant to this authorization. At approximately 10:30, the shelter started receiving reports of another hijacked plane, this time only 5 to 10 miles out. Believing they had only a minute or two, the Vice President again communicated the authorization to "engage or "take out" the aircraft. At 10:33, Hadley told the air threat conference call: "I need to get word to Dick Myers that our reports are there's an inbound aircraft flying low 5 miles out. The Vice President's guidance was we need to take them out." Once again, there was no immediate information about the fate of the inbound aircraft. In the apt description of one witness, "It drops below the radar screen and it's just continually hovering in your imagination; you don't know where it is or what happens to it." Eventually, the shelter received word that the alleged hijacker 5 miles away had been a medevac helicopter. Transmission of the Authorization from the White House to the Pilots The NMCC learned of United 93's hijacking at about 10:03. At this time the FAA had no contact with the military at the level of national command. The NMCC learned about United 93 from the White House.

Question: "What did Bolten talk about?"

OPTIONS:
- no
- yes

Answer: "VP talking to the President,"

Response:
yes