The magnetic coils of a tokamak fusion reactor are in the shape of a toroid having an inner radius of 0.700 m and an outer radius of 1.30 m. the toroid has 830 turns of large-diameter wire, each of which carries a current of 17.0 ka. (a) find the magnitude of the magnetic field inside the toroid along the inner radius. t (b) find the magnitude of the magnetic field inside the toroid along the outer radius. t

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm

Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero