Problem 14 When we turn on a computer our harddrive need to spin up fromrest. Average platter (#1 in the picture) spin up time from rest to7200rpm (revolution/minute) is 100 × 10-6s.For simplicity you may assume that harddrive platter is a solid cylin-der of mass 30g and radius of 12cm. You may ignore the hole in themiddle.spindlemagnetic platteractuatorelectronics (PCB)magnetic headactuator arm(a) Find the moments of inertia for the harddrive platter.(b) Find the average torque the spindle exert on the platter duringspin up time.

Please see the attached image for the solution.If there are queries, please do not hesitate to ask.…

Answered: Problem 14 When we turn on a computer…

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)...

See similar textbooks

Similar questions

Pulley A Pulley B Spring Scale Spring Scale Figure 1 (a) Two identical spring scales are each attached to a cord that is wrapped around a pulley, as shown in Figure 1. The two pulleys have identical mass M, and radius Rp. However, Pulley A is a solid disk, whereas Pulley B has most of its mass located at its outer rim. Both pulleys can rotate about their centers with negligible friction in their axles. The pulleys are initially at rest when the two spring scales are pulled with the same constant force Fs, causing both pulleys to rotate. Predict which of the pulleys, if either, will complete one revolution first. - Pulley A complete one revolution at the same time. Pulley B Both pulleys will Without writing or manipulating equations, provide reasoning for your selection. I x? X2 3 Ĉ Ω ... II
None
Calculate the rotational inertia of a wheel that has a kinetic energy of 46.4 kJ when rotating at 267 rev/min. Number i Units
Calculate the rotational inertia of a wheel that has a kinetic energy of 44.1 kJ when rotating at 350 rev/min. Number i Units
Review I Constants An electric turntable 0.780 m in diameter is rotating about a fixed axis with an initial angular velocity of 0.210 rev/s. The angular acceleration is 0.918 rev/s?. Part B Through how many revolutions has the blade turned in this time interval? Express your answer in revolutions. V ΑΣφ N = 0.212 rev Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part C What is the tangential speed of a noint on the tin of the blade at time t - 0 206 s2
The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.59 m and 1.06 m, respectively. The respective rotational speeds are 441 rev/min and 4,130 rev/min. Calculate the speeds of the tips of both rotors. m/s main rotor m/s tail rotor Compare these speeds with the speed of sound, 343 m/s. Vaound Vmain rotor" Vail rotor Vound Need Help? Read It
How long does it take a CD spinning at 260 rad/s to rotate through an angle of 4680 radians? A) 0.018 s B) 56 s C) 18 s D) 0.056 s
An electric screwdriver has two speeds, each of which exerts a different torque on a screw. Describe what calculations you could use to help you compare the angular momentum of a screw at each speed. What measurements would you need to make in order to calculate this?
Constants A grinding wheel 0.21 m in diameter rotates at 2500 rpm Part B What is the linear speed of a point on the edge of the grinding wheel? Express your answer to two significant figures and include the appropriate units. HÀ ? 35.60 V = S Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part C What is the acceleration of a point on the edge of the grinding wheel? Express your answer to two significant figures and include the appropriate units. HẢ ? Value Units AR =
3. For the shift lever shown, the direction of a is equal to 15º. Determine the magnitude of the force P which has a 21 N.m clockwise moment about B. N counterclockwise / clockwise คําตอบ: P =.... B P 0.2 m- m→ 0.55 m
A.it experiences a net tangential force B.its momentum points toward the center of the loop Please tell me if it's correct or wrong

Recommended textbooks for you

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

Physics for Scientists and Engineers

Physics

ISBN:

9781337553278

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Lecture- Tutorials for Introductory Astronomy

Physics

ISBN:

9780321820464

Author:

Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden

Publisher:

Addison-Wesley

College Physics: A Strategic Approach (4th Editio…

Physics

ISBN:

9780134609034

Author:

Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher:

PEARSON

SEE MORE TEXTBOOKS