1. explain what it means when we say a substance is magnetic. (hint: be sure to mention the role of the electrons)

2. discuss the relationship between electric and magnetic fields (hint: be sure to discuss what happens when electric current is applied to a magnetic field.)

It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.2 gpa). as one goes deeper and deeper in the ocean, the pressure increases by 10000 pa for every meter below the surface. if a diver goes down 80.0 m in the ocean, by how much does each cubic centimeter of her blood change in volume? give the answer in cubic centimeters (actually one cubic centimeter equals one milliliter).