Which of the following best explains why expensive satellites and space observatories such as the Hubble Space Telescope are placed in orbit around Earth to collect information from space?

it has to be b, about 97 percent.

answer(20) psi;

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.