A slab-milling operation is being carried out on a 20-in.-long, 6-in.-wide high-strength-steel block at a feed of 0.01 in./tooth and a depth of cut of 0.15 in. The cutter has a diameter of 2.5 in, has six straight cutting teeth, and rotates at 150 rpm. Calculate the material removal rate and the cutting time, and estimate the power required. Assume specific cutting energy to be 3.4 hp-min/in^3.