Given the project as shown in the table below:

Activity Predecessor(s) Normal Crash Normal Crash
Time (Weeks) Time Cost ($) Cost ($)
A - 4 2 4500 6600
B - 7 4 12000 18000
C A 2 1 6000 8000
D A 6 4 5250 8000
E B 5 3 7125 11000
F C 3 2 3000 4000
G D 2 1 6000 8000
H D, F 4 2 5250 7500
I E, G 4 2 4500 8500
J E 3 1 7500 14000

What is the cost of crash per week for activity C?

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.

You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.