Problem 4: A solid disc with a mass of 2.31 kg and a radius of 26.7 cm is free to rotate about the z axis which coincides with its axis of cylindrical symmetry. Initially at rest, a constant torque, = (70.5 mN - m) k, is applied for 6.02 s. 1/11 thin hoop, rotation about axis of cylindrical symmetry I=MR² M In lieu of the typical table as found in most textbooks, the MOIS of uniform standard objects may be obtained by using the left and right arrows to step through the image carousel to the right. Part (a) What is the magnitude, in millijoule seconds, of the final angular momentum of the disc? L₁ =422.4 mJ-s ✓ Correct! Part (b) What is the final angular velocity, in revolutions per minute, after the application of the torque? WE56.56 rpm sin( cos tan π 7 8 cotan asin() acos() EMN4 atan acotan() sinh * 1 52 5 963 HOME - cosh tanh cotanh + 0 END Degrees Radians VO BACKSPACE IXEL CLEAR Submit Hint Feedback I give up!

Problem 4: A solid disc with a mass of 2.31 kg and a radius of 26.7 cm is free to rotate about the z axis which coincides with its axis of cylindrical symmetry. Initially at rest, a constant torque, = (70.5 mN - m) k, is applied for 6.02 s. 1/11 thin hoop, rotation about axis of cylindrical symmetry I=MR² M In lieu of the typical table as found in most textbooks, the MOIS of uniform standard objects may be obtained by using the left and right arrows to step through the image carousel to the right. Part (a) What is the magnitude, in millijoule seconds, of the final angular momentum of the disc? L₁ =422.4 mJ-s ✓ Correct! Part (b) What is the final angular velocity, in revolutions per minute, after the application of the torque? WE56.56 rpm sin( cos tan π 7 8 cotan asin() acos() EMN4 atan acotan() sinh * 1 52 5 963 HOME - cosh tanh cotanh + 0 END Degrees Radians VO BACKSPACE IXEL CLEAR Submit Hint Feedback I give up!

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 77P: The axis of Earth makes a 23.5 angle with a direction perpendicular to the plane of Earth’s orbit....

See similar textbooks

Similar questions

Repeat the preceding problem replacing the marble with a solid cylinder. Explain the new result.
A boy rides his bicycle 2.00 km. The wheels have radius 30.0 cm. What is the total angle the tires rotate through during his trip?
Suppose the particles in the preceding problem have masses m1=0.10kg , m2=0.20kg , m3=0.30kg , m4=0.40kg . The velocities of the particles are . (a) Calculate the angular momentum of each particle about the origin. (b) What is the total angular momentum of the tour-particle system about the origin?
Find the net torque on the wheel in Figure P10.23 about the axle through O, taking a = 10.0 cm and b = 25.0 cm. Figure P10.23
A solid cylinder of mass 2.0 kg and radius 20 cm is rotating counterclockwise around a vertical axis through its center at 600 rev/min. A second solid cylinder of the same mass and radius is rotating clockwise around the same vertical axis at 900 rev/min. If the cylinders couple so that they rotate about the same vertical axis, what is the angular velocity of the combination?
The axis of Earth makes a 23.5 angle with a direction perpendicular to the plane of Earth’s orbit. As shown below, this axis precesses, making one complete rotation in 25,780 y. (a) Calculate the change in angular momentum in half this time. (b) What is the average torque producing this change in angular momentum? (c) If this torque were created by a pair of forces acting at the most effective point on the equator, what would the magnitude of each force be?
A wheel 2.00 m in diameter lies in a vertical plane and rotates about its central axis with a constant angular acceleration of 4.00 rad/s2. The wheel starts at rest at t = 0, and the radius vector of a certain point P on the rim makes an angle of 57.3 with the horizontal at this time. At t = 2.00 s, find (a) the angular speed of the wheel and, for point P, (b) the tangential speed, (c) the total acceleration, and (d) the angular position.
Question A motorcycle wheel that is exactly 1.25 m in diameter, 0.20 m thick and (30 pl Duesti 2.5 kg in mass is rotating at 60 revolutions per minute. a) What is the magnitude of the angular velocity of the motorcycle wheel, 00 in radians per second? the b) What is the magnitude of the velocity of the outermost Note: Treat motorcycle wheel (r = 62.5 cm), in m/s? tod. xis perpendicular nts c) What is the magnitude of the velocity of a point that is 30.0 cm from b) Calcu! the central axis of the motorcycle wheel, in m/s? ing at otational velocity of 0. Ais porp aler to the ita conter (Le, so the normal Iberti f od rough e) ll h o all of s k(points) 251 of shat
= Fn NVIDIA Consider five equal mass objects all with the same non-zero kinetic energy. Unless otherwise stated assume the axis of rotation is through the center-of-mass. Assume all densities are uniform or constant. 4 Order these objects from lowest angular velocity (1) to highest angular velocity (5). A V Type here to search FH alexa ENABLED V 7 Hoop of radius R (axis perpendicular to plane of disk). Solid disk of radius R (axis perpendicular to plane of disk). Solid sphere of radius R. Rod of length 2R (axis perpendicular to rod, axis through END of rod). Rod of length 2R (axis perpendicular to rod). Alt 4 A O 15 Et 1 ال 199+) O IA JU U Le 1 Raining now PE Ctrl = ASUS
A force, IFI, of 20N is applied to a door with a width, [a], in cm at 75°, as shown in the given diagram. If the magnitude of the torque, [7], is 18 N-m, what is the width of the door, la to the nearest centimetre? F = 20 N 75° d
3' |Y 6' B X A force P passing through points A and B has a clockwise moment of 300 ft-lb about O. Compute the value of P. 5. In the figure above, a force P intersects the x-axis at 4 ft to the right of O. If its moment about A is 170 ft-lb counterclockwise and its moment about B is 40 ft-lb clockwise, determine its y- intercept.
Suppose you exert a force of 167 N tangential to a 0.255 m radius 75.0 kg grindstone (a solid disk). (Give your answers to at least 2 decimal places.) (a) What torque (in N m) is exerted? (Enter the magnitude.) 42.585 N.m (b) What is the angular acceleration (in rad/s²) assuming negligible opposing friction? (Enter the magnitude.) 2.44 X rad/s² (c) What is the angular acceleration (in rad/s²) if there is an opposing frictional force of 22.6 N exerted 1.75 cm from the axis? (Enter the magnitude.) rad/s²