Suppose the field inside a large piece of magnetic material is b0, so that h0 = (1/μ0)b0 − m, where m is a "frozen-in" magnetization. (a) now a small spherical cavity is hollowed out of the material (fig. 6.21). find the field at the center of the cavity, in terms of b0 and m. also find h at the center of the cavity, in terms of h0 and m. (b) do the same for a long needle-shaped cavity running parallel to m. (c) do the same for a thin wafer-shaped cavity perpendicular to m.

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds

yes

ya te ayud espera