An optical disk drive in your computer can spin a disk up to 10,000 rpm (about 1045 rad/s). If a particular disk is spun at 968.7 rad/s while it is being read, and then is allowed to come to rest over 0.301 seconds, what is the magnitude of the average angular acceleration of the disk? rad average angular acceleration: s2 If the disk is 0.12 m in diameter, what is the magnitude of the tangential acceleration of a point 1/7 of the way out from the center of the disk? m tangential acceleration: s2

An optical disk drive in your computer can spin a disk up to 10,000 rpm (about 1045 rad/s). If a particular disk is spun at 968.7 rad/s while it is being read, and then is allowed to come to rest over 0.301 seconds, what is the magnitude of the average angular acceleration of the disk? rad average angular acceleration: s2 If the disk is 0.12 m in diameter, what is the magnitude of the tangential acceleration of a point 1/7 of the way out from the center of the disk? m tangential acceleration: s2

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

A cord is wrapped around the outer surface of the 5-kg disk. A force of F=(0) N. where is in radians, is applied to the cord. The disk has an initial angular velocity of un-1 rad/s (Eigure 1) Figure 1 of 1 @ F 300 mm A Part A Determine the disk's angular acceleration when it has turned 5 revolutions. Express your answer using three significant figures. Enter positive value if the angular acceleration is counterclockwise and negative value if the angular acceleration is clockwise. 195| ΑΣΦ. 11 vec ? 205.53 Submit Previous Answers Request Answer x Incorrect; Try Again; 3 attempts remaining Provide Feedback rad/² Next >
An optical disk drive in your computer can spin a disk up to 10,000 rpm (about 1045 rad/s). If a particular disk is spun at 910.0 rad/s while it is being read, and then is allowed to come to rest over 0.301 seconds, what is the magnitude of the average angular acceleration of the disk? rad average angular acceleration: s2 If the disk is 0.12 m in diameter, what is the magnitude of the tangential acceleration of a point 1/8 of the way out from the center of the disk? m tangential acceleration:
2
A child with mass 42 kg sits on the edge of a merry-go-round at a distance of 3.0 m from its axis of rotation. The merry-go-round accelerates from rest up to 0.40 rev/s in 10 s. a. What is the angular acceleration of the merry-go-round? Express this in radians/second. b. What is the angular velocity at 5 s? c. Calculate the centripetal acceleration and tangential acceleration at 5 s. d. What is the total acceleration at 5 s? e. If the coefficient of static friction between the child and the surface of the merry-go-round is 0.6, does the child fall off before 5 s? Hint: To determine this, calculate the frictional force and force due to the acceleration of the merry-go-round on the child. Compare the two forces to find which is larger than the other, therefore overcomes the other.
A turntable is off and is not spinning. A 0.2 g ant is on the disc and is 5 cm away from the center. The turntable is turned on and 0.6 s later it has an angular speed of 33 rpm. Assume the angular acceleration is constant and determine the following quantities for the ant 0.3 s after the turntable has been turned on. Express all quantities using appropriate mks units. @= V= Enter a number ih units. atan = arad = a = Fnet =
- A car tire is 60 cm in diameter. The car is traveling at a speed of 20 m/s. a. What is the tire's angular velocity, in rpm? b. What is the speed of a point at the top edge of the tire? c. What is the speed of a point at the bottom edge of the tire?
Help me please
The wheels of a bicycle make 35 revolutions as the bicycle reduces its speed uniformly from 60.0 km/h to 40.0 km/h. The wheels have a diameter of 80 cm. If the bicycle continues to decelerate at this rate, determine the time taken for the bicycle to stop. Choose the correct answer. a. t = 12.667 sec b. t = 14.554 sec c. t =13.267 sec d. t = 15.534 sec
A centrifuge in a medical laboratory rotates at an angular speed of 3550 rev/min. When switched off, it rotates through 46.0 revolutions before coming to rest. Find the constant angular acceleration of the centrifuge. rad/s2 Need Help? Read It
An optical disk drive in your computer can spin a disk up to 10,000 rpm (about 1045 rad/s). If a particular disk is spun at 704.8 rad/s while it is being read, and then is allowed to come to rest over 0.502 seconds, what is the magnitude of the average angular acceleration of the disk? average angular acceleration: If the disk is 0.12 m in diameter, what is the magnitude of the tangential acceleration of a point 1/13 of the way out from the center of the disk? tangential acceleration: x10 TOOLS rad s² m
During a very quick stop, a car deceleraes at 7.00 m/s^2.a. What is the angular acceleration of its 0.280-m-radius tires, assuming they do not slip on the pavement?b. How many revolutions do the tires make before coming to rest, given their initial angular velocity is 95.0 rad/s?c. How long does the car take to stop completely?d. What distance does the car travel in this time?e. What was the car’s initial velocity?f. Do the values obtained seem reasonable, considering that this stop happens very quickly?
A circular disc is initially rotating at 2.2 rad/s and has a constant angular acceleration. After 8.3 s it :has rotated through 4.0 rad. Its angular acceleration (rad/s2)is 0.41-.a O 2.07- .b O 0.10-.c O 0.21-.d O