Step 5 Balanced number trucks = 34.8 min 4.8 min = 7.25; round down to 7 trucks. Step 6 Truck production 9.5 cy/cycle 34.8 min/cycle 50 min 13.7 cy/hr. hour Step 7 Production 6 trucks: 13.7 cy/hr × 6 trucks = 82.2 cy/hr 7 trucks: 13.7 cy/hr x 7 trucks = 95.9 cy/hr 8 trucks: 13.7 cy/hr × 8 trucks = 109.6 cy/hr, loader controls at 107 cy/hr 9 trucks: 13.7 cy/hr x 9 trucks = 123.3 cy/hr, loader controls at 107 cy/hr A balance curve is developed to illustrate how the number of trucks affects production. 160 140 cy/hr 120 Loader production 100 80 80 60 60 40 40 20 20 Truck production Balance point 2 4 6 Trucks 8 10 12

The figure shows a beam made from a material having an allowable tensile stress of 135 MPa and a compressive stress of 165 MPa. The couple M is applied to the beam in a plane forming an angle of 45° as shown in the figure. a) Determine the location of the centroid of the cross section b) Calculate the moments of inertia about the principal axes, I, and ly c) Determine the maximum allowable internal moment M that can be applied to the beam N M Y 140 mm 140 mm 45⁰ 140 mm 280 mm 140 mm 140 mm

Limit of economic haul is 450 m. not 50m. Thanks!

What is the approximate optimum hourly production rate for a wheeled backhoe filling hauling units? Struck capacity for the bucket is 6 loose cubic feet and the bucket fill factor is 110%,. The cycle time is 2 minutes, the soil type is moist loam with a 25% swell factor.

Determine the LOS on a regular weekday on a 1.5-mile segment of an 8-lane freeway (four lanes in each direction) in rolling terrain. Use the following data.