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Work for an octahedron **
Three protons and three electrons are to be placed at the vertices of a regular octahedron of edge length a. We want to find the energy of the system, that is, the work required to assemble it starting with the particles very far apart. There are two essentially different arrangements. What is the energy of each?
A rectangular sample of a metal is 3.5 cm wide and 475 µm thick. When it carries a 42 A current and is placed in a 0.8 T magnetic field it produces a 6.5 µV Hall emf, Determine the Hall field in the conductor
Light shines during a single slit whose width is 4.60*10-4 m. A diffraction pattern is formed on a flat screen located 3.8 m away. The distance among the middle of the central bright fringe and the first dark fringe is 6.50 mm. What is the wavelength..
You create a plot of T2 (in s2) vs. L (in m) and the linear fit of your graph gives a slope of 3.7484 ± 0.0069. What is the value of the local gravitational constant, g?
A metal object is suspended from a spring scale. The scale reads 920 N when the object is suspended in air and 750 N when the object is completely submerged in water. Discover the volume of the object. Discover the density of the metal.
A mirror produces an image of the sun, and the image is located 0.9800 m from the mirror. The same mirror is then used to produce an image of the tree. find the object distance do of the tree from the mirror
A 535 kg automobile slides across an icy street at a speed of 54.5 km/h, What is the speed of the two cars just after they collide
A small spherical cavity of radius r is made in a large electrics (a dielectric material) of constant polarization P. Neglecting the effects of outer boundaries of the electrets find the electric field at the center of the cavity.
You have a ball on a wire that is twirled in a circular orbit with a radius of 3.7 m, What is the speed of the ball in orbit
Two solid spheres, each of mass m, are rolling without slipping with a speed v. If the spheres have radii R1 and R2 with R1/R2 = 5.5, what is the ratio of their kinetic energies
A car is slides down an icy driveway that slopes at an angle of 20 degrees. What is an acceleration of the car? Assume that the friction between tires and the icy pavement is negligible.
A 1-kg block on the Moon has a weight of 1.62 N. Given that the Moon's radius is 1740 km, calculate the Moon's mass
two gliders on a level air track approach each other. One glider has a mass m1= 0.6 kg and a velocity v1= +4 m/s. Calculate the velocity of the joined gliders
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