What is the magnitude of the net torque on the wheel due to these three forces for an axis perpendicular to the wheel and passing through its center

What produces a record of seismic waves? richter scale seismogram barometer seismograph

What are atoms of the same element with varying number of neutrons

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).