The period is then measured with the rings locked and then with the rings free to show the significance of the terms in Steiner's equation for moments of inertia. Questions 9 and 10: A steel ball supported by a stick is attached to a rotating cylinder, and itself rotates in a circle of radius r, as shown. The top is constructed so that when it rests on the table its center of gravity is below the center of curvature of the surface of the top. A steel ball supported by a stick rotates in a circle. When one squeezes the lower extended vertical members, the acrobat does amazing tricks. Found with Newton's Universal Law of Gravitation.
Physics B Free-Response Question (2001): Z Side View: R. P. Q. In exercise 3, much of the three disks mass was distributed throughout the ring. FRICTION AND TIPPING FORCES IN CENTRAL ACCELERATION. 36 kg when the specimen is fully submerged in water. Bologna bottles are specialy built heavy walled bottles that contain a great amount of strain.
When given a rapid spin, the football rises to its pointed end and finds dynamic stability with the center of gravity above the center of curvature of the pointed end. What is the fundamental frequency of this string? A variable speed motor is coupled to a horizontal rod so that the rod can be made to rotate in a horizontal plane with a variable rate. The disk then rotates in a counterclockwise direction as seen from above, and the ball is projected outward at the instant the disk is in the position shown above. It is possible to calculate the total rotational inertia for any shape about any axis by summing the rotational inertia of each mass. AP physics midterm Flashcards. 85% How does an air mattress protect a stunt person landing on the ground after a stunt? The base mount for the vertical axis is in good ball bearings so that it can be rotated by hand until the spring is stretched sufficiently to bring the ball to an index mark. One hole passes through the center of mass of the block and the other is to one side. A ball then rolls down the track while illuminated with a stroboscope. The reaction torques to applied torques can be shown when the gimbals are locked.
Some mercury and colored water are placed in a glass vessel which can be spun about its vertical axis of symmetry. The incline is then raised until the center of mass of the block moves to the left of the lower edge of the block and the block tips. Assume that the particles are sufficiently far apart so that the only force acting on each particle after it is released is that due to the electric field. Springs are placed between the air track carts and to the ends of the track. The liquid level in the tube remains where it is. The center of mass shows only rectilinear motion. Tesque d, consectetur adipiscing elit. For example, the rotational inertia of a solid cylinder with radius rotated about a central axis is. 00 m has a hole in its center 0. Many interesting curved patterns are traced on the paper depending on the magnitude of the uniform motion along the guide bar. The strings unwind from the two pullies at different rates so that the frame for the pullies is raised or lowered by pulling on the strings. One pendulum is started and energy is slowly passed to the others. 89% The slope of the "best fit" straight line is most nearly • a. A steel ball supported by a stick rotates like a windmill. If the spin of the ball is started about the intermediate axis, the ball will flip to the more stable spin.
A horizontal mass and spring may be studied without the gravitational complication present in a vertically suspended system. They can be easily polarized. This demonstration is very much like the one above except that results aren't quite so good due to loss of rotational energy. When given a small amount of angular momentum, the instructor can vary his angular velocity at will by changing the radius at which he supports the dumbbells. Solved] A steel ball supported by a stick rotates in a circle of radius r,... | Course Hero. Week 5 Assignment PowerPoint on Evidenced Based. Blocks 1 and 2 of masses m1 and m2, respectively, are connected by a light string. DISTANCE AND TIME INTERVALS.
M1 g sin θ + m2g sin θ = Mg + f + 2f. How do you derive the moment of inertia, using calculus? 42% A ball is thrown straight up in the air. 7. telltheirmanagersiftheyexperienceorseeanybullyingbehavioursifthemanageristhepers. This demonstration helps the students visualize more easily that the velocity is zero at the cusps. The charge is the same on each capacitor, but the potential difference across each capacitor • depends on its capacitance. The button is then rotated to twist the string. ROTATION AND TRANSLATION.
Two objects are dropped vertically into the sled one at a time: first an object of mass m and then an object of mass 2m. The system will become stable when the gyro is set in motion and the ladder will not tip. Handles extend from the gimbal ring so that one can hold the gyro. Learn how the distribution of mass can affect the difficulty of causing angular acceleration. Unlock full access to Course Hero. The frequency of the driving force is such that the system is in resonance when the man is half full of water. The center of percussion is marked on the bat. C) Now suppose you are listening to the sound of an organ pipe that is open at both ends.
M1 g sin θ − f f = g sin θ − m1 m1. The pulley is then placed on a freely moving roller skate cart. Of this official form provided it contains the same information Either form may. Approximate g=10m/s2 for simplicity of calculations. The problem of energy should be considered. And for a hollow cylinder with inner and outer radii and respectively, Expressions for other simple shapes are shown in Figure 4. Force, Circular Motion, and Gravity Chapters 4-5.
His wisdom, too, is slightly off-center, because Koubi has been given a uniquely twisted perspective on human nature. Over the next ten days Hall kept up the pressure. Koubi calls them "birdies. " Ethics and Philosophy. What is post orgasm torture.com. Intelligence and military officials would talk about Sheikh Mohammed's state only indirectly, and conditionally. The summary of another experiment concluded, The results confirmed earlier findings.
But no interrogator is ever going to be prosecuted for keeping Khalid Sheikh Mohammed awake, cold, alone, and uncomfortable. In any nation the decision to prosecute a crime is an executive one. There are still many things he is not free to discuss, but he is happy to talk about his methods. This embarrasses him very much. "My friends went with a car to Yeshiva Nehalim [a religious school]. What is post orgasm torture. Few support the use of physical pressure to extract confessions, especially because victims will often say anything (to the point of falsely incriminating themselves) to put an end to pain. He is looking down and to the right of the camera. Joining such a group makes an individual feel distinct, important, and superior, and invests even the most mundane of his activities with meaning.
He said he had gotten rid of my problem. As a tactic "it is often found to be worse than useless, " the manual says, because the sense of despair it induces can make the prisoner withdraw into depression—or, in some cases, see an honorable way out of his predicament. What is post orgasm tortures. Under pressure, he says, nearly everyone looks out first and foremost for No. As time went by, his knowledge would decay while that of his questioners improved. With older men the priorities shift slightly. Armed with tapes of Nimr's confession, Hall felt he had accomplished his mission; but several months after finishing his report he was fired. In report after report hard-core terrorist leaders are said to be either cooperating or, at the very least, providing some information—not just vague statements but detailed, verifiable, useful intelligence.
Nothing rattles a captive more than to be confronted with a fact he thought was secret or obscure. The interrogator gave him one more chance to agree to make a statement. "He was our biggest catch, " Hall says—a man with powerful connections. The United States is avoiding the brand "torturer" only by sleight of word. In the contemptuous words of one military man, they "prohibit everything except three square meals, a warm bed, and access to a Harvard education. ") One man's misery is another man's mind-altering experience. Some people found they liked sensory-deprivation tanks; indeed, in later years people would pay for a session in one. The soldiers in Cowan's unit played cat-and-mouse with an enemy that melted away at their approach. He could think about only one thing: how to make the treatment stop. Their manhood is being tested, not just their loyalty and conviction.
Maiming and physical abuse are legal in Somalia, Iran, Saudi Arabia, Nigeria, Sudan, and other countries that practice sharia; the hands of thieves are lopped off, and women convicted of adultery may be stoned to death. The full-scale U. retreat from the uglier side of espionage is well documented—but has, by all accounts, been sharply reversed in the aftermath of 9/11. In China they are beaten with clubs and shocked with cattle prods. More posts you may like. The manual was shaken loose at the same time by Cohn and Thompson. It shook Dunn to his core. The police captured the suspect when he tried to pick up ransom money, but the suspect wouldn't reveal where he had left the boy, who the police thought might still be alive. Asked if Osama bin Laden was alive, he said, "Of course he is alive. " Because the more comfortable they are, the more they talk, and the more they talk, the more trouble they're in—the harder it is to sustain a lie. "Playing an American surrogate won't help you or your country, " he said. They ponder in their own private space, performing a kind of self-hypnosis.
"They are very rare, " he says, "but in some cases the more aggressive you get, and the worse things get, the more these men will withdraw into their own world, until you cannot reach them. Even if severe pain does elicit information, it can be false, which is particularly troublesome to interrogators seeking intelligence rather than a confession. Soon afterwards Nimr died in his cell. "Martinez's family had hired a lawyer, and he called the station forbidding us to further question his client. " We hear a lot these days about America's overpowering military technology; about the professionalism of its warriors; about the sophistication of its weaponry, eavesdropping, and telemetry; but right now the most vital weapon in its arsenal may well be the art of interrogation. Miles and miles of thick, slurping mud that swallowed soldiers to their waists, it is populated by galaxies of mosquitoes and other biting insects, snakes, crocodiles, and stands of rotting mangrove. The maximum opportunity for intelligence gathering comes in the first hours after an arrest, before others in a group can possibly know that their walls have been breached. He was fed, nursed, even celebrated. What would be the worst painless torture? If a subject believes that a particular drug or "truth serum" renders him helpless, he is off the hook.
All manner of innovative cruelty is still commonplace, particularly in Central and South America, Africa, and the Middle East. For Koubi the three critical ingredients of that process are preparation, investigation, and theater. Weeks after the sheikh's capture Bush Administration officials and intelligence experts told The Washington Post that the al-Qaeda deputy's "cooperation under interrogation" had given them hopes of arresting or killing the rest of the organization's top leadership. Men in authority tend to abuse it—not all men, but many. Interrogators would have ever growing files on their subjects, with each new fact or revelation yielding new leads and more information—drawn from field investigations (agents in the real world verifying and exploring facts gathered on the inside), the testimony of other subjects, collaborators spying inside the prison, and surreptitious recordings. Some say that Sheikh Mohammed was captured months before the March 1 date announced by Pakistan's Inter-Services Intelligence (ISI). Being caught so quickly in a lie demonstrates the futility of playing games with the interrogator, and strengthens his hand. Tell us, and we will get the information to those on the outside who need to know. " Jerry Giorgio, the legendary NYPD interrogator, has operated within these rules for nearly forty years. Again Martinez looked troubled. So it concerned him that his first statement didn't sound right.
The aim of the Alice in Wonderland or confusion technique is to confound the expectations and conditioned reactions of the interrogatee... Few moral imperatives make such sense on a large scale but break down so dramatically in the particular. He would not reveal accurate details about fortifications around his company's headquarters, in Di Linh. For his first two days in custody he said nothing beyond confirming his name. The most venerable are those in the Geneva Convention, but the United States has sidestepped this agreement in the case of those captured in the war on terror.
The detective knew that Martinez was trying to make a good impression; he definitely didn't want to leave Giorgio with any unresolved issues to play in his mind. Sometimes two or more questions are asked simultaneously. The question also subtly suggested an out: The neighborhood wasn't safe. Then there was the bravado of Cofer Black, the counterterrorism coordinator, in his congressional testimony last year. An unnamed intelligence official told The Wall Street Journal, "What's needed is a little bit of smacky-face. He might as well have been entering a new dimension, a strange new world where his every word, move, and sensation would be monitored and measured; where things might be as they seemed but might not; where there would be no such thing as day or night, or normal patterns of eating and drinking, wakefulness and sleep; where hot and cold, wet and dry, clean and dirty, truth and lies, would all be tangled and distorted. "The American people need to see my face, " he said. It was the fear more than the pain that made them talk. In the first hours of his captivity the hood came off and a picture was taken. His organization scatters, altering its plans, disguises, cover stories, codes, tactics, and communication methods. Then you can't shut him up.
In Canada a scientist put a fifty-two-year-old woman identified only as Mary C. in a sensory-deprivation chamber for thirty-five days. When he was marched into the building, Hall says, some of the officers "tried to melt into the shadows" for fear of eventual retribution. He is very proud of his skills, among them an ability to speak Arabic so fluently that he can adopt a multitude of colloquial flavors. Secretary of Defense Donald Rumsfeld said in September of last year that interrogation of captured terrorist leaders had yielded "an awful lot of information" and had "made life an awful lot more difficult for an awful lot of folks. " And the more powerful the drug, the less reliable the testimony. When does shaking or pushing a prisoner, which can become violent enough to kill or seriously injure a man, cross the line from coercion to torture? He hadn't eaten since his arrest, four days earlier. The human mind craves routine, and can adjust to almost anything in the presence of it, so his jailers would take care that no semblance of routine developed.