After fixing a flat tire on a bicycle you give the wheel a spin. Its initial angular speed was 5.50 rad/s and it rotated 14.5 revolutions before coming to rest. You may want to review (Pages 305-307).

A centrifuge in a medical laboratory rotates at an angular speed of 3,800 rev/min. When switched off, it rotates through 54.0 revolutions before coming to rest. Find the constant angular acceleration (in rad/s2) of the centrifuge. rad/s2

Dario, a prep cook at an Italian restaurant, spins a salad spinner and observes that it rotates with constant speed 20.0 times in 5.00 seconds and then stops spinning it. The salad spinner rotates 6.00 more times before it comes to rest. Assume that the spinner slows down with constant angular acceleration. Part A What is the magnitude of the angular acceleration of the salad spinner as it slows down? Express your answer numerically in radians per second per second. ▸ View Available Hint(s) a = 8.38 radians/s² Submit ✓ Correct Part B Previous Answers How long does it take for the salad spinner to come to rest? Express your answer numerically in seconds. ▸ View Available Hint(s) t = Templates Symbols undo redo reset keyboard shortcuts help, S

Suppose that you are holding a pencil balanced on its point. If you release the pencil and it begins to fall, what will be the angular acceleration when it has an angle of 10.0 degrees from the vertical?   Calculate the time t for the pencil to hit the ground, assuming that it falls from standing perfectly vertical and maintains this angular acceleration. Express your answer in seconds.   a=-17.0 rad/s2

A centrifuge in a medical laboratory rotates at an angular speed of 3,650 rev/min. When switched off, it rotates through 46.0 revolutions before coming to rest. Find the constant angular acceleration (in rad/s2) of the centrifuge. rad/s2

A potter's wheel rotating at 250 rev/min is switched off and rotates through 86.5 revolutions prior to coming to rest. What is the constant angular acceleration of the potter's wheel during this interval? (Assume the positive direction to be the direction of rotation of the wheel. Indicate the direction with the sign of your answer.) rad/s2

A computer hard disk starts from rest, then speeds up with an angular acceleration of 190 rad/s2 until it reaches its final angular speed of 7,200 rmp (revolutions per minute).  How many revolutions has the disk made 10.0 s after it starts up?  Do not enter units.  Don't forget to convert rad/s to rev/s.  A sketch of angular velocity versus time will help you solve this problem.  Treat rev/s just as you would m/s.

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A rotating merry-go-round makes one complete revolution in 4.3s Part A What is the linear speed of a child seated 1.1 m from the center? Express your answer using two significant figures. ανα ΑΣφ m/s Submit Request Answer Part B What is her tangential acceleration ? m/s O Aramak için buraya yazın

A rotating wheel requires 5.00 s to rotate 29.0 revolutions. Its angular velocity at the end of the 5.00-s interval is 96.0 rad/s. What is the constant angular acceleration (in rad/s) of the wheel? rad/s2