The position of a particle according to the appropriate coordinate set can be vectorially specified in meters as r=i(sin2πt)- 16j(1-e^((-t)⁄4) )+kt^2/4 where t is the movement time of particle in seconds after passing its origin. If the mass of the particle is 2.1 kg, calculate the x component of its R force and the magnitude of its resultant force R at time t = 4s.

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).