The galactic magnetic field in some region of the interstellar space has a magnitude of 1.00 x 10^-9 T. A particle of interstellar dust has a mass of 11.0 µg and a total charge of 0.340 nC. How many years does it take for the particle to complete a revolution of the circular orbit caused by its interaction with the 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).