4.36 A circular disk of radius r R is parallel to a rigid plane and the...
A parallel plate capacitor with circular plates of radius R = 16.0 cm and plate separation d = 9.00 mm is being charged at the rate of 8.00 C/s. What is the displacement current through a circular loop of radius r = 21.00 cm centered on the axis of the capacitor? 8.00 You are correct. What is the displacement current through a circular loop of radius r = 3.00 cm centered on the axis of the capacitor? What is the...
A uniform circular disk (merry-go-round) of radius R=2.19 m and mass M=21.9 kg freely rotates about a vertical axis, which is perpendicular to the ground, with initial angular velocity omegai=3.05 rad/s. A cat of mass m=8.70 kg, climbing in a tree, which hangs over the disk, falls straight down onto the edge of the disk and rides on it. The cat decides to walk inward and sits down R/2 m from the center. What is now the magnitude of the...
#335. Rolling disk kinetics A uniform rigid disk of mass m = 6 kg and radius r = 4 m starts at rest on a flat ground as shown. Force Ď= 28î + 589 N acts at point P on the right edge, and gravity g = 9.8 m/s² acts vertically. The coefficient of friction between the disk and the ground is j = 0.75. D lo c. P What is the angular acceleration ā of the disk? Matlab/Mathematica input:...
The figure shows a rigid structure consisting of a circular hoop of radius R and mass m1 and a square made of four thin bars, each of length R and mass m. The rigid structure rotates at a constant speed about a vertical axis, with a period of rotation of s. If R = m and m = kg, calculate the angular momentum about that axis. At the instant of the figure, a kg particle P has a position vector...
1. A thin circular disk of radius R carries a uniform surface charge o and is spinning with a constant angular velocity w. (a) Find the magnetic dipole moment of this disk. (Hint: Split the disk into rings, find the dipole moment of each ring and integrate. (b) Find the magnetic field caused by this dipole moment.
7 IP Consider a parallel-plate capacitor constructed from two circular metal plates of radius R. The plates are separated by a distance of 1.4 mm . Part A What radius must the plates have if the capacitance of this capacitor is to be 1.8 μF ? Express your answer using two significant figures. R = nothing m Request Answer Part B If the separation between the plates is increased, should the radius of the plates be increased or decreased to...
A system of two bodies consisting of a rod of mass m and length L, and a disk of mass M and radius R, moves in the x-y plane. The disk rotates about the axis attached to the rod at a distance b from its axis of rotation. The absolute angular velocity of the rod is 2, and the angular velocity of the disk relative to the rod is @. Determine the ratio E/Ho of the kinetic energy E of...
Consider a parallel-plate capacitor constructed from two circular metal plates of radius R. The plates are separated by a distance of 1.5 mm. What radius must the plates have if the capacitance of this capacitor is to be 1.0 μF ? Find the radius of the plates that gives a capacitance of 1.0 μF for a plate separation of 4.0 mm .
. Question 9 4 pts Suppose a disk of radius R = 6 cm is rotating with an angular velocity w = 7 rad/s. What is the speed of a point on the rim of the disk? 200 m/s O 0.84 m/s 14 m/s - 168 m/s O 42 m/s O 0.42 m/s 1.68 m/s 0.06 m/s 0.72 m/s Question 10 4 pts Suppose the angular velocity of a disk of radius R = 6 cm increases uniformly from 14...
Suppose that a parallel-plate capacitor has circular plates with radius R = 23 mm and a plate separation of 3.8 mm. Suppose also that a sinusoidal potential difference with a maximum value of 110 V and a frequency of 85 Hz is applied across the plates; that is, V = (110 V) sin[2π(85 Hz)t]. Find Bmax(R), the maximum value of the induced magnetic field that occurs at r = R.