You pull a solid iron ball with a density of 7.86 g/cm^3 and a radius of 1.20 cm upward through a fluid at a constant speed of 7.00 cm/s. the fluid exerts a drag force that is directly proportional to speed, and the proportionality constant is 0.950 kg/s. what is the magnitude of the force (in n) you exert on the ball? (you may ignore the buoyant force.)

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).