Right after the Pentagon was hit, NEADS learned of another possible hijacked aircraft. It was an aircraft that in fact had not been hijacked at all. After the second World Trade Center crash, Boston Center managers recognized that both aircraft were transcontinental 767 jetliners that had departed Logan Airport. Remembering the "we have some planes" remark, Boston Center guessed that Delta 1989 might also be hijacked. Boston Center called NEADS at 9:41 and identified Delta 1989, a 767 jet that had left Logan Airport for Las Vegas, as a possible hijack. NEADS warned the FAA's Cleveland Center to watch Delta 1989. The Command Center and FAA headquarters watched it too. During the course of the morning, there were multiple erroneous reports of hijacked aircraft. The report of American 11 heading south was the first; Delta 1989 was the second. NEADS never lost track of Delta 1989, and even ordered fighter aircraft from Ohio and Michigan to intercept it. The flight never turned off its transponder. NEADS soon learned that the aircraft was not hijacked, and tracked Delta 1989 as it reversed course over Toledo, headed east, and landed in Cleveland. But another aircraft was heading toward Washington, an aircraft about which NORAD had heard nothing: United 93. United Airlines Flight 93 FAA Awareness. At 9:27, after having been in the air for 45 minutes, United 93 acknowledged a transmission from the Cleveland Center controller. This was the last normal contact the FAA had with the flight. Less than a minute later, the Cleveland controller and the pilots of aircraft in the vicinity heard "a radio transmission of unintelligible sounds of possible screaming or a struggle from an unknown origin." The controller responded, seconds later: "Somebody call Cleveland?"This was followed by a second radio transmission, with sounds of screaming.
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QUESTION: Which air traffic center communicated with United 93?

Energy is stored in chemical compounds. This energy is called chemical energy. Chemical energy is a form of potential energy. When bonds between atoms are broken, energy is released. The wood in fireplaces has chemical energy. The energy is released as heat and light when the wood burns. Most living things get their energy from food. When food molecules are broken down, the energy is released. It may then be used to do work, like playing ball or studying science. If you have ever heard, "Eat a good breakfast", thats why. You need energy to do things during the day. To do those things you need energy. You get your energy from the food you eat. That energy is stored in your body until you need it. How did you get to school today? If you walked, you used chemical energy from the food you ate. What if you rode the bus or were driven in a car? Where did that energy come from?
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QUESTION: Does wood have potential energy?

What if two children push a swing at the same time? Would the swing go higher? Yes, together their force would be more. It is common for forces to be combined. Most objects on Earth have at least two forces acting on them. Do you know what one of them is? Of course, that force is gravity. How many forces do you have on you right now? Gravity pulls you down toward the center of Earth. Your legs exert a downward force. They hold you up against the pull of gravity. Consider the example in Figure 1.3. A book is resting on a table. Gravity pulls the book downward. It has a force of 20 newtons. At the same time, the table pushes the book upward. Its force is also 20 newtons. The table opposes the pull of gravity.
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QUESTION: How many forces does an object have?

(CNN) -- We'll let you finish, but The Muppets have the best Instagram account of all time. The feed was launched just over a month ago as part of a promotional push for their upcoming movie, "Muppets Most Wanted." But in between quippy posters and ads for the film, which is a sequel to 2011's blockbuster "The Muppets" with Jason Segel, there are ingenious "selfies" from the Muppets crew. In fact, the first post was a coy snapshot from Kermit, Miss Piggy and Gonzo, with a filter in full effect: And the selfies grew more adorable -- and more hilarious -- from there: We now have evidence of the time Animal burst in on Beaker in the bathroom. And we know what Gonzo does after a hard day of stunts. "Gonzo treated himself to a massage today to try to work out all of his stuntman kinks. Even weirdos need pampering. #bougielife #yolo," reads the caption to this pic: The Muppets' curmudgeonly yet lovable critics, Statler and Waldorf, are still trying to get the hang of taking the perfect selfie -- "This is the fanciest calculator we've ever seen!" they were heard saying when the photo was taken -- while Rowlf is clearly a selfie king. From the Swedish Chef to Miss Piggy's evil alter ego, everyone has gotten in on the first-person photo sessions. The only people noticeably missing from the account are the Muppets' human co-stars in "Muppets Most Wanted," like Tina Fey, Ty Burrell and Ricky Gervais. As with the first "Muppets" film, which also starred Amy Adams, Chris Cooper and Rashida Jones, the "Muppets" sequel has plenty of human star power. In addition to Fey and Gervais, "Muppets Most Wanted" also has appearances from Tom Hiddleston, Salma Hayek, Stanley Tucci and Lady Gaga.
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QUESTION:
What movie are the selfies of Kermit, Miss Piggy and Gonzo from?