What is the angular speed in rads of the drive when the

Assignment Help Physics
Reference no: EM13622747

A computer disk drive spins at 7200 rpm when a brief 30 second power outage occurs. During this time the drive slows down due to friction which provides a constant deceleration, and the drive makes exactly 2200 revolutions (but is not at rest).

A) What is the angular speed (in rad/s) of the drive when the power comes on, after 30s?

B) How much time would be needed for the drive to come to rest?

Reference no: EM13622747

Questions Cloud

A lake contains 4 distinct types of fish suppose that each : a lake contains 4 distinct types of fish. suppose that each fish caught is equally likely to be any one of these types.
Six months from today you plan to borrow 433 million for 6 : six months from today you plan to borrow 433 million for 6 months at libor. you hedge your interest rate risk with a
A bicycle tire with a radius of 042 m has a linear velocity : a bicycle tire with a radius of 0.42 m has a linear velocity of 2.6 ms and an tangential acceleration of - 1.0 ms2what
Assume a corporation has earnings before depreciation and : 1. assume a corporation has earnings before depreciation and taxes of 82000 depreciation of 45000 and that it has a 30
What is the angular speed in rads of the drive when the : a computer disk drive spins at 7200 rpm when a brief 30 second power outage occurs. during this time the drive slows
Let x be a poisson random variable with mean 20 use the : let x be a poisson random variable with mean 20.a use the markov inequality to obtain an upper bound on p p x gt 26b
Lamar lumber buys 8 million of materials net of discounts : lamar lumber buys 8 million of materials net of discounts on terms of 35 net 60 and it currently pays after 5 days and
Estimate the time constant for such a thermometer neglect : a fluid-expansion thermometer uses liquid freon c 0.22 btulbm middot f rho 85.2 lbmft3 enclosed in a 0.25-in-id
Use a 005 level of significance construct a 95 confidence : at a certain college it is estimated that at most 25 of the students ride bicycles to class. does this seem to be a

Reviews

Write a Review

Physics Questions & Answers

  What is the maximum efficiency of turbine

There is an 80 kg beam attached to a hinge on a wall and supported by the cord. The angle between the cord and the beam is 25 degrees. The beam is 4.5 m long., and cord is attached to the beam a metre from the beam's end. There is a 20 kg beam hangin..

  What is the intensity level at the farther listener

Two people hear a tornado siren, What is the intensity level (in dB) at the farther listener relative to the other listener

  What is the force the track exerts on the marble

A marble has mass .9kg it is released from height=3m down a ramp into a loop-the-loop of radius=1. At the top of the loop-the-loop, what is the force the track exerts on the marble

  Find the kinetic energy of the system at the equilibrium

A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E = 39.1 J, What is the kinetic energy of the system at the equilibrium point

  Calculate the raduis of the circle

An electron on from the sun enters the earth's magnetic field high above its surface and undergoes a cicular motion. Calculate the raduis of the circle

  Find his average power output during the race

Every year, there is a foot race to the top of the Empire State Building. what was his average power output during the race

  What is the relationship between the speeds of ball

Ball A is attached to one end of a rigid massless rod, while an identical ball B is attached to the center of the rod. Each ballhas a mass of m= 0.50 kg, and the length of each half rodis L= 0.1m.

  Calculate what is the translational speed at the top

A bowling ball encounters a 0.760-m vertical rise on the way back to the ball rack, as the drawing illustrates. Find the translational speed at the top

  Q1 a projectile is fired at an upward angle of 45 from the

q1. a projectile is fired at an upward angle of 45 from the top of a 227 m cliff with the speed of 160 ms. what will be

  What is the speed of the two cars after the collision

In the railroad freight yard, an empty freight car of massmrolls along a straight level track at1.0m/s and collides with an initially stationary, What is the speed of the two cars after the collision

  Estimate the magnitude of the maximum torque

A current loop in a motor has an area of 0.85 . It carries a 240 current in a uniform field of 0.62. What is the magnitude of the maximum torque on the current loop

  Estimate the charge on each plate

A homemade capacitor is assembled by placing two 10 in pie pans 11 cm apart and connecting them to the opposite terminals of a 9 V battery. Estimate the charge on each plate

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd