8.1 Problem 1: Case 1: A DJ starts up her phonograph player. The turntable accelerates uniformly from rest, and takes t, = 11.6seconds to get up to its full speed of f1 = 78 revolutions per minute.Case 2: The DJ then changes the speed of the turntable from f, = 78 to f, = 120 revolutions per minute. She notices that theturntable rotates exactly n2= 18 times while accelerating uniformly.Randomized Variablest, = 11.6 secondsn2 = 18 timesPart (a) Calculate the angular speed described in Case 1, given as fj = 78 revolutions per minute, into units of radians/second.Numeric : A numeric value is expected and not an expression.Oj =%3DPart (b) How many revolutions does the turntable make while accelerating in Case 1?Numeric : A numeric value is expected and not an expression.n =.Part (c) Calculate the magnitude of the angular acceleration of the turntable in Case 1, in radians/second?.Numeric : A numeric value is expected and not an expression.a1 =.Part (d) Calculate the magnitude of the angular acceleration of the turntable (in radians/second2) while increasing to 120 RPM (Case 2).Numeric : A numeric value is expected and not an expression.az =Part (e) How long (in seconds) does it take for the turntable to go from f, = 78 to f, = 120 RPM?Numeric : A numeric value is expected and not an expression.t, =

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Problem 1: Case 1: A DJ starts up her phonograph player. The turntable accelerates uniformly from rest, and takes t, = 11.6 seconds to get up to its full speed of f = 78 revolutions per minute. Case 2: The DJ then changes the speed of the turntable from f, = 78 to f, = 120 revolutions per minute. She notices that the turntable rotates exactly n2= 18 times while accelerating uniformly. Randomized Variables t = 11.6 seconds n2 = 18 times Part (a) Calculate the angular speed described in Case 1, given as fj = 78 revolutions per minute, into units of radians/second. Numeric : A numeric value is expected and not an expression. O1 = Part (b) How many revolutions does the turntable make while accelerating in Case 1? Numeric : A numeric value is expected and not an expression. n = Part (c) Calculate the magnitude of the angular acceleration of the turntable in Case 1, in radians/second2. Numeric : A numeric value is expected and not an expression. a1 =

Problem 1: Case 1: A DJ starts up her phonograph player. The turntable accelerates uniformly from rest, and takes t, = 11.6 seconds to get up to its full speed of f = 78 revolutions per minute. Case 2: The DJ then changes the speed of the turntable from f, = 78 to f, = 120 revolutions per minute. She notices that the turntable rotates exactly n2= 18 times while accelerating uniformly. Randomized Variables t = 11.6 seconds n2 = 18 times Part (a) Calculate the angular speed described in Case 1, given as fj = 78 revolutions per minute, into units of radians/second. Numeric : A numeric value is expected and not an expression. O1 = Part (b) How many revolutions does the turntable make while accelerating in Case 1? Numeric : A numeric value is expected and not an expression. n = Part (c) Calculate the magnitude of the angular acceleration of the turntable in Case 1, in radians/second2. Numeric : A numeric value is expected and not an expression. a1 =

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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