Calculate the magnetic flux produced by a coil with 80-turns winding, 15cm external radius toroidal core and 10cm radius constructed with silicon steel, traversed by a current of 5A, knowing that the density of the magnetic field in this core is equivalent to 10600 Gauss. Also calculate the magnetic reluctance of the core, being the relative magnetic permeability of silicon steel of 10200.

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth’s center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little