Finish listening to your favorite compact disc

Assignment Help Physics
Reference no: EM13544210

As you finish listening to your favorite compact disc (CD), the CD in the player slows down to a stop. Assume that the CD spins down with a constant angular acceleration. Part A If the CD rotates clockwise (let's take clockwise rotation as positive) at 500rpm (revolutions per minute) while the last song is playing, and then spins down to zero angular speed in 2.60s with constant angular acceleration, what is vector alpha, the angular acceleration of the CD, as it spins to a stop? Express your answer in radians per second squared. (aka rad/s^2)

Reference no: EM13544210

Questions Cloud

Steam locomotive uses the back-and-forth motion : A steam locomotive uses the back-and-forth motion of a drive rod to turn its 1.55 m diameter wheel. Each compete oscillation of the rod corresponds to one wheel revolution.What's the rod's oscillation frequency when the train is moving at 30 m/s ?
Mounted at angle of 35 degrees on a frictionless incline : A spring is mounted at angle of 35 degrees on a frictionless incline. The spring is compressed by 15 cm where it is allowed to propel a mass of 5.5 kg up the incline. a. if the spring constant is 550 N/m, how fast is the mass moving when it leaves th..
Object lies between the focal point and the mirror : A concave mirror has a focal length of 25.8 cm. The distance between an object and its image is 51.4 cm. Find (a) the object and (b) image distances, assuming that the object lies beyond the center of curvature and (c) the object and (d) image distan..
Find the mass of the second projectile : A 14kg projectile is launched at 380m/s at a 55 (degrees) angle to the horizontal. At the peak of its trajectory it collides with a second projectile moving horizontally, in the opposite direction, at 140m/s . The two stick together and land 9.8km ho..
Finish listening to your favorite compact disc : As you finish listening to your favorite compact disc (CD), the CD in the player slows down to a stop. Assume that the CD spins down with a constant angular acceleration. Part A If the CD rotates clockwise (let's take clockwise rotation as positiv..
Study electrical oscillations in the human brain : Physicians use electroencephalograms (EEGs) to study electrical oscillations in the human brain. So-called beta oscillations, whose enhancement has been linked to alcoholism, have frequencies from 12 to 30 Hz . What's the corresponding range in perio..
What is the magnitude of the change in its momentum : A 1870 kg truck traveling north at 37 km/h turns east and accelerates to 52 km/h. (a) What is the change in the truck's kinetic energy? (b) What is the magnitude of the change in its momentum?
Magnitude of the larger of the two resistances : When a 42.0-V emf device is placed across two resistors in series, a current of 12.0 A is flowing in each of the resistors. When the same emf device is placed across the same two resistors in parallel, the current through the emf device is 62.0 A. Wh..
Two masses are connected by a string : Two masses are connected by a string which goes over an ideal pulley. Block A has a mass of 4.75kg and can slide along the smooth plane inclined by 37.0 degrees above the horizontal. The masses remain stationary. a) draw a free body diagram b) what m..

Reviews

Write a Review

Physics Questions & Answers

  Find the angular frequency of oscillation

A 0.80 kg body oscillates on a spring that, when extended 3.0 mm from equilibrium, has a restoring force of 5.0 N. find the angular frequency of oscillation

  What is the x-coordinate relative to firing point

Two small spheres spaced 20centimetres apart have equal charge. How many excess electrons should be present on each sphere if magnitude of the force of repulsion between them is newtons.

  What is the radius of curvature of the mirror

Consider a concave mirror with a focal length of 18.90 cm. Find the location of the image when the object is 10.20 cm from the mirror. What is the magnification of the image? What is the radius of curvature of the mirror in cm? Is is virtual and u..

  A mass of 96 g is attached to a spring with a spring

what is the equation for gravitational potential energy?what is the equation for kinetic energy?define conservation of

  Evaluate the distance the sled moves before it stops

A sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of 2.50 m/s. find the distance the sled moves before it stops

  What is the average force that the hand exerts on the mass

A mass of 1.85 kg is moving 0.413 m/s when it drops into a student's hand. What is the average force that the hand exerts on the mass

  Find the collision diameter

For alpha particles of energy 7.68 MeV scattered from a platinum foil two microns thick, find the collision diameter

  Determine the average force exerted on the nail

A 0.300 kg hammer is moving horizontally at 8.00 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. What was the average force exerted on the nail

  Estimate the final pressure of the gas

0.75mol of argon gas is admitted to an evacuated 70cm3 container at 40 degrees C. estimate the final pressure of the gas

  How long does it take to begin rolling without slipping

A bowling ball of mass M and Radius R (treated as a solid sphere) is thrown along a level surface so that initially (t = 0) it slides with a linear speed Vo but dows not rotate, How long does it take to begin rolling without slipping

  What is his toal distance traveled

A long-jumper leaps of the horizontal at a speed of 11.0 m/s at an angle of 20 degrees. what is his toal distance traveled

  What was the speed of the meteorite

A 72 kg meteorite buries itself 5.0 m into soft mud. The force between the meteorite and the mud is given by , What was the speed of the meteorite

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