Consider a sphere centered at the origin of radius 1 that rotates about the z-axis in a "west to east" direction with constant angular speed . Suppose that an ant travels "north" on the sphere with angular speed and is located at (1,0,0) at time t=0. Then the position of the ant can be given by for . Compute the acceleration and show that it can be written as where, , .
Consider a sphere centered at the origin of radius 1 that rotates about the z-axis in a "west to ...
(a) A sphere with radius R rotates with constant angular velocity . A uniform charge distribution is fixed on the surface. The total charge is q. Calculate the current density in this scenario where . Show how the E-field is calculated using Gauss' Law and the direction (in spherical coordinates) of the current density. We were unable to transcribe this imageWe were unable to transcribe this image7 =
Consider the initial value problem below has a series solution centered at zero of y = (x). Determine '(0), ''(0) and 4(0). y''+ x2y'+ cos(x)y = 0, y(0) = 2, y'(0) = 3. We were unable to transcribe this imageWe were unable to transcribe this imageWe were unable to transcribe this imageWe were unable to transcribe this image
A hollow sphere of radius a has uniform surface charge density σ and is centered at the origin. It sits inside a bigger sphere, also centered at the origin, with radius b > a and uniform surface charge density −σ. Because of the spherical symmetry, the electric field will have the form () = E(r) r̂, where negative E(r) corresponds to an electric field pointing towards the origin, and positive E(r) corresponds to a field pointing away. What is E(r)...
3. Under the influence of a vector field a particle spirals on the surface of a unit sphere toward the (t)-t and ф(t)- uppermost pole. With its spherical angular positions parametrically defined by 24t, the particle's path can be defined t€[3m/2.2n. r(t)-sin(θ(t)) cos(d(t)) ị t sin(θ(t)) sin(φ(t))J+cos(θ(t)) k, Compute the work done by the constant vector field F(,y,z) 1 k in moving the particle along this path We were unable to transcribe this image 3. Under the influence of a...
In the 3D Cartesian system the rotation matrix is around the z-axis is (a 2D rotation): Where is the angle to rotate. Then rotation from A to A' is can be represented via matrix multiplications: [A'] = [R][A] Such a rotation is useful to return a system solved in simplified co-ordinates to it's original co-ordinate system, returning to original meaning to the answer. A full 3D rotation is simply a series of 2D rotations (with the appropriate matrices) Question: If...
A solid cylindrical conducting shell of inner radius a = 4.9 cm and outer radius b = 6 cm has its axis aligned with the z-axis as shown. It carries a uniformly distributed current I2 = 5.8 A in the positive z-direction. An inifinte conducting wire is located along the z-axis and carries a current I1 = 3.8 A in the negative z-direction. 1. What is By(T), the y-component of the magnetic field at point T, located at (x,y) =...
3) A pendulum consists of a solid spherical mass of mass 3m and radius R whose center is attached to the end of a uniform rod of mass m and length 4R which is pivoted about an axis at its end. a) The pendulum is constructed with a sphere of mass 1.5 kg and radius 15 cm, rod of mass .50 kg and length 60 cm. The mass swings in simple harmonic motion of maximum amplitude of /6 radians. Find...
1 Moment of inertia of a solid uniform sphere around its axis of symmetry a) What is the volume element dV of a sphere? b) Assume a constant density p MIV, calculate the moment of inertia, remember that r is measured from the rotation axis for each volume element Use the volume of a sphere to get a solution that only depends on the mass M and radius R of the sphere. c) 2) Spinning DVD On a DVD, data...
Where And Exercise 6.5.28 Let S (z, y, z) e R3 1 z? + уг + z2-1,#2 0} be the upper hemisphere of the unit sphere in R3. For each of the following integrals, first predict what the integral will be, and then do the computation to verify your prediction 22. 222. 1U. JS Definition 6.5.9 Let S,T C(RT, R). The wedge product of S and T is the alternating bilinear form SAT : Rn × Rn → R given...
(1 point) A body of mass 10 kg moves in the xy-plane in a counterclockwise circular path of radius 3 meters centered at the origin, making one revolution every 11 seconds. At the time t 0, the body is at the rightmost point of the circle. A. Compute the centripetal force acting on the body at time t. B. Compute the magnitude of that force. HINT. Start with finding the angular velocity o [rad/s] of the body (the rate of...