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Get Full Access to Engineering Mechanics: Statics & Dynamics - 14 Edition - Chapter 12 - Problem 12-120
Get Full Access to Engineering Mechanics: Statics & Dynamics - 14 Edition - Chapter 12 - Problem 12-120

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# The car travels along the circular path such that its

ISBN: 9780133951929 123

## Solution for problem 12-120 Chapter 12

Engineering Mechanics: Statics & Dynamics | 14th Edition

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Engineering Mechanics: Statics & Dynamics | 14th Edition

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Problem 12-120

The car travels along the circular path such that its speed is increased by at = (0.5et ) m>s 2 , where t is in seconds. Determine the magnitudes of its velocity and acceleration after the car has traveled s = 18 m starting from rest. Neglect the size of the car.

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Media Effects (Chapter 15)  Media effects is the field of research that attempts to understand, predict, and explain the effects of mass media on individuals and society o scientific method: understand, predict, and explain o individuals and society: media does not only effect the individual but society as well  Not all media researchers are studying "effects" or aiming for prediction o Cultural studies researchers try to understand how media constructs and is constructed by questions of gender, race, social class, nationality, etc. o Rhetorical studies researchers try to understand how media functions in terms of persuasion, meaning, political contestation, ideology, identity, etc. Media Effects Theories  The Hypodermic Needle Model o An early model for television effects on audiences o The idea that powerful media shoot their messages directly into vulnerable audiences' brains o Also known as the "magic bullet" or "direct effects" model o Fails to account for the fact that people are critical and skeptical of media messages o Widely discredited by subsequent research  The Minimal Effects Model o Media effects are less powerful, and are mostly indirect. o Also known as the "limited model" o People engage in selective exposure:  We tend to expose ourselves only to messages that we are already comfortable with o People engage in selective retention:  We tend to retain messages that confirm the values and ideas that we already hold o This model still assumes that audiences are passive in their consumption of media  Uses and Gratifications o Studies how and why media are used, rather than what their effects are o The surveillance function suggests that people use the media to monitor the world around them o Similarly, the socialization function suggests that people use the media to help fit in with others o While the textbook says this model was never widely adopted, it has been incorporated into rhetorical and cultural studies research. What Effect Does the Media Have  The most significant demonstrated effect of media is agenda- setting: o Not telling people what to think, but telling them what to think about  Many of the other effects listed in the textbook are less well proven but still worth discussing  The cultivation effect is the idea that heavy TV viewing causes is to believe that TVis giving us an accurate portrayal of the real world o One common version of this is the mean world syndrome: we believe the world is more dangerous than it really is because TV shows so much crime  The spiral of silence theory is the idea that the media silences controversial opinions by making those who have them fear social invasion o This can even be true of opinions that are not really controversial, since the media edits out very widely held opinions o Some studies indicate that we are even willing to go along with wrong answers if "everyone else" is giving those answers too

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##### ISBN: 9780133951929

Since the solution to 12-120 from 12 chapter was answered, more than 435 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 12-120 from chapter: 12 was answered by , our top Engineering and Tech solution expert on 11/10/17, 05:20PM. The answer to “The car travels along the circular path such that its speed is increased by at = (0.5et ) m>s 2 , where t is in seconds. Determine the magnitudes of its velocity and acceleration after the car has traveled s = 18 m starting from rest. Neglect the size of the car.” is broken down into a number of easy to follow steps, and 52 words. This full solution covers the following key subjects: Car, its, Rest, circular, determine. This expansive textbook survival guide covers 22 chapters, and 2358 solutions. Engineering Mechanics: Statics & Dynamics was written by and is associated to the ISBN: 9780133951929. This textbook survival guide was created for the textbook: Engineering Mechanics: Statics & Dynamics , edition: 14.

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