2. Let F = 4 i-6 j+ 2 k and Let r = 3 i-3 j - 5 k. Find the torque in both Cartesian and polar coordinates. (Find Torque by cross product, find the %3D magnitude of the torque, find the SOLID angle theta and phi since the vector will be in 3 dimentsions.).

Q: X A vector à of fixed length A is rotating about the z axis at a constant angular speed w. At t = 0,…

A:

Q: Question 4 A disk radius R-41.4 cm rotates about ita central axis through O with a constant angular…

A: Radius of the disk (R) = 41.4 cm ( convert in meters : R = 0.414 m)Initial tangential velocity of…

Q: 5. Four 10 N forces are applied on a 3 m long uniform bar. d = 1m. Find the net torque about the…

A: The center of the bar is in the middle since the bar is a long, uniform bar. Recall that a torque…

Q: 4. The magnitude of the force P is 250 N. Determine the moments of P about point O. y 600 mm P A 360…

A: Given, P=250N

Q: 30% 25 N 20° 45° C 2.4 m 10 N 4.8 m- 30 N (a) What is the net torque (in N m) on the bar about an…

A: Solution     Given datar=2.4mR=4.8mForce F1=25N,F2=10N,F2=30NCalculate net torque on the bar about…

Q: 3. Given two vectors: P = 2.0î — 3.0ĵ + 4.0k and ₹ = −2.0î + 4.0k. Determine a.) the magnitude of…

A:

Q: It the cable AB exerts a force of F = 50 lb on the rod, determine the moment of this force about…

A: Given ,  Point A = (4,0,0 ) ft Point B = (0,0,4) ft Point C = (0,4,0) ft AB→ =(-4i+4k) ft CA→…

Q: 1. Convert the following angles to radians: a. 25° b. 35° C. 128° d. 270°

A: For 25  Radian = 25×pi /180 = 5 pi/ 36  For 35  = 35× pi /180 = 7 pi/ 36

Q: 4. Determine the moment about point A of each of the three forces acting on the beam. คําตอบ: Mo…

A: We are given magnitudes of 3 forces. We first find the component of 2nd force perpendicular to the…

Q: A wheel is rotating clockwise on a fixed axis perpendicular to the page (x). A torque that causes…

A:

Q: Given: See below. L, 8 ft, -6 ft, and d=3ft. Weights (not mass) are m₁ = 129 lbf, m₂ = 32.2 lbf.…

A: From the above free body diagram ,La=8 ft  ,Lb=6 ft and d=3 ft weights are   m1g= 129 lbf and…

Q: A person is laying on their stomach doing a hamstring curl.  They go from fully extended (0o) to…

A: Angular displacement means the angle by which body rotates around the center of point.  Here , we…

Ising model of Ferromagnets

The Ising model is one of the easiest and most famous theoretical models for ferromagnetism in statistical mechanics. When a group of atomic spins aligns such that their magnetic moments are pointed in the same direction and produce a strong permanent magnetic moment in macroscopic size, the phenomenon is called ferromagnetism. The relative permeability of these magnets is greater than unity and increasing magnetization with the applied external field. Even in the absence of an external magnetic field, these substances retain spontaneous magnetization. An example of ferromagnets is iron.