21) A crusher is fed with limestone having particles of 2cm median equivalent diameter and discharges a product consisting of particles of 0.5cm median equivalent diameter. The equipment operates at a capacity of 1.2104kg/h consuming a power of 10hp. If the requirements of the process demand a finer size of the product (0.4cm of median equivalent diameter) decreasing the capacity to 1.0104kg/h, determine the theoretical power consumption under the new conditions using Rittingers's law, Kick's law and Bond crushing law