1.Two 25-kip loads are maintained 6 ft apart as they are moved slowly across the 18-ft beam ab. write a computer program and use it to calculate the bending moment under each load and at the midpoint c of the beam for values of x from 0 to 24 ft at interval delta x = 1.5ft
2.What are the basic assumptions of the 'traffic flow model' and 'capacity model' used in signal timing design? Discuss.
3.A masonry project requires 900 sf repointing. Labor of this activity is given as in the CREW, 1 brick mason and 1 helper. The productivity is 0.5 labor hours per 1 sf. The wages are for the mason $60 and for the helper $45 per hour. The cost of labor in dollars will be:
a) 100
b) 110
c) 115
d) 105