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Consider an Ising model of just two elementary dipoles, whose mutual interaction energy is ±ε. Enumerate the states of this system and write down their Boltzmann factors. Calculate the partition function. Find the probabilities finding of the dipoles parallel and antiparallel , and plot these probabilities as a function of kT/ε. Also calculate and plot the average energy of the system. At what temperatures are you more likely to find both dipoles pointing up than to find one up and one down?
What is the escape speed on a spherical asteroid whose radius is 500 km and whose gravitational acceleration at the surface is 2.7 m/s2
A hammer is hanging by a light rope from the ceiling of a bus. The ceiling of the bus is parallel to the roadway, What is the acceleration of the bus
Ganymede has an orbital period of 7.15 days and orbits 1.07 x 106 km from Jupiter, while Europe has a period of 3.55 days and is 6.71 x 105 km from Jupiter. find the mass of Jupiter
The contacts worn by a farsighted person allow her to see objects clearly that are as close as 25.0 cm, How far away is the poster actually located
A particle of charge +10.4mC and mass 5.43 x 10-5 kg is released from rest in a region where there is a constant electric field of +573 N/C. What is the displacement of the particle
a small excursion boat with a flat deck bobs up and down excuting simple harmonic motion due to the waves on a lake.
a 12.0 g plastic ball is dropped from a height of 2.50 m, How much mechanical energy was lost during the balls fall
A baseball with a mass of 0.14 kg is moving at +35 m/s. Calculate the momentum of the baseball
A football team is in a position to kick a field goal to win a game. The ball is placed 36 m (approximately 39 yards) from the goalposts. What was the horizontal distance traveled
A Viewing window in an aquarium is 62 inches wide and 56 inches high. If the average pressure inside the water tank is 16psi. What is the outward force on the window.
The x and y components of a vector A are -25.0 m +40.0 m. respective y. What is the angle between the direction of A and positive direction of x?
The lap joint is fastened togetherusing two bolts. Determine the required diameter of the bolts if the allowable shear stress for the bolts is 60MPa and the allowable bearing stress in the plates is 110MPa.
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