Can magnetic fields be blocked?

Six solutions are made, each with a y concentration of 1.0 μm and varying concentrations of ab as shown below. based on the concentrations, rank the solutions in decreasing order of reaction rate.

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle