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Solution: Both pulleys are fixed to the shaft and as the

Engineering Mechanics: Statics & Dynamics | 14th Edition | ISBN: 9780133951929 | Authors: Russell C. Hibbeler ISBN: 9780133951929 123

Solution for problem 5-84 Chapter 5

Engineering Mechanics: Statics & Dynamics | 14th Edition

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Engineering Mechanics: Statics & Dynamics | 14th Edition | ISBN: 9780133951929 | Authors: Russell C. Hibbeler

Engineering Mechanics: Statics & Dynamics | 14th Edition

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Problem 5-84

Both pulleys are fixed to the shaft and as the shaft turns with constant angular velocity, the power of pulley A is transmitted to pulley B. Determine the horizontal tension T in the belt on pulley B and the x, y, z components of reaction at the journal bearing C and thrust bearing D if u = 45. The bearings are in proper alignment and exert only force reactions on the shaft.

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2: Chapter 7- The CSI Effect Wednesday, March 23, 2016 7:26 PM Notes off PowerPoint: Media/ Popular Culture  Sensationalizing crime  Increasing fear  Sensationalizing criminals  Sexualizing crime and the criminal justice field  Influencing criminal justice field Video  Many aspects are dramatized  Good and bad influence on the CJS  Hair analysis is not a sure thing  DNA is what they want to find Tv vs Reality  Expect forensic investigation  Expect evidence  Expect reliable and fast tests  *jurors are drawn to what they see on tv o Don't expect a testimony and a police investigation DNA testing  Pros o Child support enforcement o Paternity o Reversed convictions o Helped solve crime  Cons o Disrupt people's lives o Overzealous DA's o Shouldn't replace police investigation o Not 100% reliable FBI Definition of Rape  1927 o The carnal knowledge of a female, forcibly and against her will  2012 o The penetration, no matter how slight, of the vagina or anus with any body part or object, or oral penetration by a sex organ of another person, without the consent of the victim Rape Culture  Setting in which rape is pervasive and normalized due to societal attitudes about gender and sexuality  Everywhere we look there are different views Socialization…  Blaming the victim (“She asked for it!”)  Trivializing sexual assault (“Boys will be boys!”)  Sexually explicit jokes  Tolerance of sexual harassment  Inflating false rape report statistics  Gratuitous gendered violence in movies and television  Defining “manhood” as dominant and sexually aggressive  Defining “womanhood” as submissive and sexually passive  Pressure on men to “score”  Assuming only promiscuous women get raped  Assuming that men don’t get raped or that only “weak” men get raped  Refusing to take rape accusations seriously  Teaching women to avoid getting raped instead of teaching men not to rape Statistics  68% are not reported to police  98% rapists never spend a day in jail or prison  47% friend or acquaintance Social Media Platforms  good o Disseminate information quickly (spreads)  Missing items, persons Locating vehicle   Safety alert o Criminals may self-incriminate  By pictures posted, etc.  Bad o Potential for false information o Causes panic/ copycat offenders o Attention seeking o People may think it's not an issue for the public/ not their responsibility to look out Facebook S vs B Case (example)  S- no FB impact o Mental health issues o Chemical dependency and developmental disability o Impulsive and sophisticated o Sexually active and vengeful  B- FB impact o Immature o Amber alert o Kids next day made fun of kid for disappearing  D-random, FB impact o Kid home late and parents post on Facebook shaming messages to the child and threatening other the child may be with Computer Crime  US Dept. Justice: "Any violation of criminal law that involves a knowledge of computer technology for (its) perpetration, investigation, or prosecution". o Computer is the object of crime o Computer is the subject of crime o Computer is the instrument of crime Cyber Crime (individual)  Consumer fraud  Cyber theft o Identity theft o Phishing: posing to be a legitimate company to get personal information  Cyber aggression o Cyber stalking: victim has to feel fearful  Not new! Just new ways of perpetuating new crimes Cyber Crime (Business)  Hackers o Malware: trying to crash/gain system of computers o Spam: infects computers  Pirating intellectual property: free online movies, books, etc. Cyber Crime (Community)  Online pornography o Speed, security, anonymity o 12% of websites have some sort of porn content  Gambling o 2011 justice department didn't allow commercials during sporting events o April, 2013 Nevada first online poker site only accessible by instate citizens *remember Amanda Todd story

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Chapter 5, Problem 5-84 is Solved
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Textbook: Engineering Mechanics: Statics & Dynamics
Edition: 14
Author: Russell C. Hibbeler
ISBN: 9780133951929

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Solution: Both pulleys are fixed to the shaft and as the