[Exchange interaction] Calculate the exchange ground state energy of a ferromagnetic 1D chain formed by N spins with S = ½, using the Heisenberg Hamiltonian. What is the energy necessary to flip one spin in the chain?

Q: current is increased to 3.0 A? 2. A device is connected to a 210 V source. How much current is…

A: Q2. Given that  Potential difference across the device V = 210 Volt Let the current through the…

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Q: Two particles m, = 5kg and m2 = 10kg moving as shown in the figure. If v- = 2m/s and v2 = 6m/s. If…

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Q: The cube in the figure (Figure 1) contains no net charge. The electric field is constant over each…

A: Given data:  The cube contains no net charge Electric field is constant over each face of the cube…

Q: If a 1.06 kg mass on a spring has a period of oscillation of 4.0 seconds, find the spring constant.…

A: Write the given values with the suitable variables. m=1.06 kgT=4 s Here, m and T are the mass and…

Q: The unit cell is the smallest cell that if repeated will form the lattice. Select one: O True O…

A: Unit is the smallest unit which repeats again and again in 3 dimensions to give the entire crystal…

Q: The dimension of acceleration is L/T^2

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Q: If a spring has a frequency of 21 Hz and an amplitude of 1.9 m, then find the MAXIMUM velocity. Give…

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Q: 2. The resistances of three resistors are 12, 15, and 9 ohms. These resistors are connected in…

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Q: a) 61.3N b) 47.2N c) 33.4N d) 74.58N

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Q: After the man takes a bite off a watermelon, a fluid particle travels along a curved path (shown by…

A: This is case of projectile motion, the x component of velocity of body is Vx. The value of Vx is…

Q: nd

A: Given: Length of copper rod is 0.53 m Mass of copper rod is 5×10-2kg Current is 13 A

Q: One leg of a right triangle measures 11 cm. The hypotenuse is 1 cm longer than the other leg. Find…

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Q: Thiose conduatons aine campying comments, I, = Iz= 2A ionsto the and T3- 6A at of os shouen în the…

A: The magnetic force per unit length of current carrying conductor is given by the formula,…

Q: A force of magnitude P = 169 N is applied to the stationary machine handle as shown. Write the force…

A: Given:-  A force of magnitude of P = 169 N was applied to the machine handle. Find:-  Write the…

Q: In Oersted's experiment, suppose that the compass was 0.24m from the current-carrying wire. If a…

A: Given: in this question, the given details are, In the Oersted's experiment, the compass was 0.24 m…

Q: Determine the magnitude Pof the vertical force required to lift the wheelbarrow free of the ground…

A: A magnitude is simply a measurement of distance or quantity. It describes the absolute or relative…

Q: A metal sphere of radius 30 cm has a net charge of 30.0 nC. What is the magnitude of the electric…

A: Given: In this question, the given details are, A metal sphere of radius 30 cm has a net charge of…

Q: A 3,2 km B 120 m #

A: The distance between the man and the drone in the image is 3.2 kilometers. Text label "A" in the…

Q: а. What is refraction? b. Why does light bend when it passes thru different materials

A: a. Refraction is redirection or change in direction of wave while passing from one medium to other…

Q: The square loop of wire in magnetic field B (B = (Be/a)(zi + xk)} is in the x-y plane and its center…

A: Given, Magnetic field, width of square loop is, L=l current flowing through the wire is, i = I Now…

Q: A 6230-kg satellite is in a circular earth orbit that has a radius of 3.81 x 107 m. A net external…

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Q: You drop a 10 Ib bowling ball and .1 lb piece of paper with air resistance. Which object will hit…

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Q: Only first part

A: Given that-Potential difference, V= 71 VoltCross-sectional area= 3.56×10-6 m2Resistivity, ρ=…

Q: checoefficient of ki

A: Given: Mass of bundle is 6.2 Kg Angle is 21o Kinetic energy is 144 J Kinetic friction coefficient is…

Q: A horse pulls a cart with a force of 15 lb at an angle of 34° above the horizontal and moves along…

A: applied force (F) = 15 lb Angle (θ) = 34o above the horizontal Constant speed (v) = 6.7 mihr

Q: 1) Time-of-flight: Suppose that you have a time-of-flight mass spectrometer with a detector that can…

A: Given: Suppose that you have a time-of-flight mass spectrometer with a detector that can clearly…

Q: = 201². The fan blade in a jet engine rotates from rest with the angular acceleration a = 1 9. find…

A: GIVEN         Angular acceleration = α = 20t2

Q: Draw the vector

A: vectors(2d) can be represented in sheets or plane by drawing with proper magnitude and direction.

Q: 11. A spaceship is traveling with a velocity of 0.8c relative to the Earth. What is the momentum of…

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Q: When two parallel plates connected to a 40-V battery, the electric field between the plates is 2200…

A: Given: In this question, the given values are, Voltage is, V=40Volt, And the electric field is,…

Q: In the given right triangle, find the side labeled *. (a) (b) 8 6

A: The triangle law of vector addition states that if two vectors are represented by two sides of a…

Q: 5) Let's use this expression to solve a problem. Star X and Star Y are intrinsically identical…

A: Given, star X is located 20 light-years from earth star Y is located 40 light-years  from earth…

Q: 1. A capacitor is connected to a 120-V, 60-Hz supply parallel with a coil with L = 6.63 mH and R =…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Gram is the fundamental unit of mass in SI system

A: SI base unit of mass is kilogram.It is represented by letter Kg.

Q: When you shine a waterproof light from underwatertoward the surface of the water, there is a…

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Q: The distance between an object and its image formed by a concave mirror is d = %3D 21 cm. The…

A: Given data: The distance between image and object is d=21cm and The lateral magnification is M=-0.5.…

Q: A block of mass W is pulled along a rough horizontal plane by a force P inclined an angle e from the…

A: Weight of the block=w Constant Horizontal force is=P The coefficient of friction between the block…

Q: 1- Write down a relation to find the magnetic force acting on a current carrying conductor and draw…

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