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The quantity B.ds = UoI in Ampere's law is called magneticcirculation. Active figure 30.10 and Figure 30.13 show pathsaround which the magnetic circulation was evaluated. Each ofthese paths encloses an area. What is the magnetic fluxthrough each area? Explain your answer.
A stretched spring stores 2.2 of energy. How much energy will be stored if the spring is stretched three times as far
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 7 m and, in starting, rotates according to ? = 0.30t2, When t = 5.0 s, what is the magnitude of the astronaut's linear speed
A mass m is suspended to the ceiling by a spring with constant k and equilibrium length L0. It can swing and stretch in any direction below the ceiling. Find the Hamiltonian. Are any variables cyclic?
What is tension in the cord
A car was seen driving off the edge of a cliff at an angle of 10 ° above the horizontal. The cliff is 95m high and the car impacted the ground at a distance of 156m from the base of the cliff. What is the speed of the car.
A cylinder made of insulating material has a uniform volume charge density. The cylinder is 20m in length and a radius 0.2m. The total charge on the cylinder is 4nC. Half way down the cylinder's length, what is the electric field outside the cylinder..
A rocket in a fireworks display explodes high in the air. The sound spreads out uniformly in all directions. Find the distance from the source at which the intensity is 0.80 10?6 W/m2
The safe slides with a constant speed if Clyde pushes from behind with 420 {rm N} of force while Bonnie pulls forward on a rope with 285 {rm N} of force. Illustrate what is the safe's coefficient of kinetic friction on the bank floor?
A 3.50-m-long, 360kg steel uniform beam extends horizontally from the point where it has been bolted to the framework of a new building under construction, What is the magnitude of the total torque due to the worker and the force of gravity
a student is reading material written on a blackboard. her contact lenses have a refractive power of 57.50 diopters; the lens to retina distance is 1.750cm. how far in meters is the blackboard from her eyes
A 23.7 g bullet is shot into a 4706 g wooden block standing on a frictionless surface. The block, with the bullet in it, acquires a velocity of 0.982 m/s. Calculate the velocity of the bullet before striking the block. Amswer in units of m/s.
A rectanbular tank is placed on wheels and is given a constant horizontal acceleration a. display that, at steady state, the angle made by the free surface with the horizontal is given by tan(delta)=a/g.
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