• a satellite measures a spectral radiance of 8 watts/m2/um/ster at a wavelength of 10 microns. Assuming a surface emissivity of 0. 90, what would be the estimated temperature?.

the area between the graph and the t axis

answer///terminator or twilight zone;

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.