A machine part rotates at an angular speed of 0.041 rad/s; its speed is then increased to 1.6 rad/s at an angular acceleration of 0.75 rad/s². (a) Find the angle through which the part rotates before reaching this final speed. rad

Starting from rest, a 10.8cm diameter compact disk takes 7.96s to reach its operating rotational speed of 1920.0 rpm (revolutions per minute). Assume that the angular acceleration is constant. The disk's moment of inertia is 3.88E-5kg.m². How much torque is applied to the disk? Submit Answer Tries 0/10 How many revolutions does it make before reaching full speed? (Do not enter a unit.) Submit Answer Tries 0/10

A dentist's drill starts from rest. After 3.50 s of constant angular acceleration it turns at a rate of 2.30 x 104 rev/min. (a) Find the drill's angular acceleration. rad/s2 (b) Determine the angle (in radians) through which the drill rotates during this period. rad

The 47-kg flywheel has a radius of gyration of ko = 300 mm about its center of mass. (Figure 1) Figure Part A W = If it is subjected to a torque of M = (90¹/2) N m, where is in radians, determine its angular velocity when it has rotated 3 revolutions, starting from rest. Express your answer to three significant figures and include the appropriate units. μà Value Submit Request Answer www. ? M = (9 0¹/2) N.m Units 1 of 1

What is the initial angular velocity of an object if it has a final angular velocity of -9.62rad/s, it has an angular acceleration of -1.35rad/s/s, and it rotates for a time of 0.64s? ωo =  _____

In a downtown office building, you notice each of the four sections of a rotating door has a mass of 85 kg. What is the width, in meters, of each section of the door if a force of 66 N applied to the outer edge of a section produces an angular acceleration of 0.460 rad/s?? Additional Materials Reading

A flywheel of mass 186 kg has an effective radius of 0.620 m assume that the mass is concentrated along a circumference located at the effective radius of the flywheel What constant torque is required to bring the wheel from rest to an angular speed of 147 rev/min in a time interval of 30.0 s? answer in Nm

A dentist's drill starts from rest. After 3.50 s of constant angular acceleration, it turns at a rate of 2.49 104 rev/min. (a) Find the drill's angular acceleration.__________rad/s2 (along the axis of rotation)(b) Determine the angle through which the drill rotates during this period.__________rad