A sanding disk with rotational inertia 8.7 x 10-3 kg·m2 is attached to an electric drill whose motor delivers a torque of magnitude 23 N·m about the central axis of the disk. About that axis and with torque applied for 23 ms, what is the magnitude of the (a) angular momentum and (b) angular velocity of the disk?
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A sanding disk with rotational inertia 8.7 x 10-3 kg·m2 is attached to an electric drill whose motor delivers a torque of magnitude 23 N·m about the central axis of the disk. About that axis and with torque applied for 23 ms, what is the magnitude of the (a)
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- A sanding disk with rotational inertia 9.8 x 103 kg-m² is attached to an electric drill whose motor delivers a torque of magnitude 35 N-m about the central axis of the disk. About that axis and with torque applied for 14 ms, what is the magnitude of the (a) angular momentum and (b) angular velocity of the disk? (a) Number i Units (b) Number i UnitsEach of the following objects has a radius of 0.162 m and a mass of 2.31 kg, and each rotates about an axis through its center (as in this table) with an angular speed of 38.4 rad/s. Find the magnitude of the angular momentum of each object. (a) a hoop kg · m²/s (b) a solid cylinder kg · m²/s (c) a solid sphere kg · m²/s (d) a hollow spherical shell kg · m²/sThe figure shows three uniform solid disks, each of mass 9.4 kg and radius 0.5 m rotating independently around a common axle. Two of the disks rotate in one direction at 5.3 rad/s while the other rotates in the opposite direction at 3.5 rad/s. Calculate the magnitude of the system's angular momentum about a point in the middle of the center disk. L = kg.m²/s
- Please help meA solid disk rotates in the horizontal plane at an angular velocity of 0.042 rad/s with respect to an axis perpendicular to the disk at its center. The moment of inertia of the disk is 0.089 kg·m2. From above, sand is dropped straight down onto this rotating disk, so that a thin uniform ring of sand is formed at a distance 0.29 m from the axis. The sand in the ring has a mass of 0.42 kg. After all the sand is in place, what is the angular velocity of the disk?The figure shows three uniform solid disks, each of mass 9.4 kg and radius 0.5 m rotating independently around a common axle. Two of the disks rotate in one direction at 5.3 rad/s while the other rotates in the opposite direction at 3.5 rad/s. Calculate the magnitude of the system's angular momentum about a point in the middle of the center disk. L = kg m²/s .
- The figure shows three uniform solid disks, each of mass 7.8 kg and radius 0.3 m rotating independently around a common axle. Two of the disks rotate in one direction at 5.3 rad/s while the other rotates in the opposite direction at 3.6 rad/s. Calculate the magnitude of the system's angular momentum about a point in the middle of the center disk. L= kg m²/s - Report your numerical answer below, assuming three significant figures. Remember to include a "-" when necessary.A 1.70-kg particle moves in the xy plane with a velocity of = (4.10 1-4.00 j) m/s. Determine the angular momentum of the particle about the origin when its position vector is F (1.50 +2.20 j) m. + j+ k) kg - m²/sConceptual Example 14 provides useful background for this problem. A playground carousel is free to rotate about its center on frictionless bearings, and air resistance is negligible. The carousel itself (without riders) has a moment of inertia of 110 kg-m2. When one person is standing at a distance of 1.71 m from the center, the carousel has an angular velocity of 0.644 rad/s. However, as this person moves inward to a point located 0.641 m from the center, the angular velocity increases to 0.832 rad/s. What is the person's mass? | | Number i Units
- 6.A net torque is acting on the two particles shown in the figure for two seconds. Given the information below: (a) Calculate the magnitude and direction of the net angular momentum of particles A and B about the origin point O. (b) Then find the net torque acting this system about point O. mĄ = 6.2 kg тв 3D 3.1 kg VA = 1.2 m/s %3D Vв 3D 2.6 т/s ri = 1.5 m r2 = = 2.7 m VB AA horizontal vinyl record of mass 0.0855 kg and radius 0.101 m rotates freely about a vertical axis through its center with an angular speed of 4.18 rad/s and a rotational inertia of 2.64 x 10-4 kg·m2. Putty of mass 0.0253 kg drops vertically onto the record from above and sticks to the edge of the record.What is the angular speed of the record immediately afterwards?