A soil sample obtained from below the groundwater table has a moisture content of 20.0 % and a specific gravity of solids of 2.72. Assuming the soil is fully saturated, S=100%. what is its buoyant unit weight of the soil? Unit: kN/m3

Calculate the flight height above average terrain that is required to obtain vertical photographs at an average scale of Sif the camera focal length is f for the following data: ▾ Part A S=1:14,000; f = 152.40 mm Express your answer in feet to three significant figures. H= Submit Part B |VL]ΑΣΦ1 11 H= Request Answer S=1:9600; f=88.90 mm Express your answer in feet to three significant figures. vec 4 → ĊIE ΠΙΑΣΦΗ vec 4 ? ? ft ft

ACTIVITY (NODES) IMMEDIATE DURATION (DAYS) A 25 15 A 20 D 20 31 A 17 43 D, E 55 A 25 J 10 K F,I,.G,J 15 FIND: 1. DRAW THE ACTIVITIES USING ARROW NETWORK. 2. CALCULATE AND DRAW THE CRITICAL PATH, EARLIEST START, EARLIEST FINISH, LATEST START, LATEST FINISH, AND ACTIVITY SLACK. 3. TABULATE NODES (ACTIVITIES), DURATION, ES, LS, AND SLACK

). The network and durations given below show the normal schedule for a project, and the table given below summarizes the time-cost information for the activities, the owner wants to finish the project in 110 days, so find the minimum possible cost for the project to finish in 110 days AND 20 A B C D (19) E F 9. Activity (days) 120 20 40 30 50 60 Normal du 120 60 Crash (days) 100 15 30 20 40 45 30 on 4 50 Norma Cost 12000 1800 16000 1400 3600 13500 Cost 14000 2800 22000 2000 4800 18000