Rosenberg Computing wants to establish an assembly line for producing a new product, the Personal Digital Assistant (PDA). The tasks, task times, and immediate predecessors for the tasks are as follows:Task Time (sec) Immediate PredecessorsA 12 -B 15 AC 8 AD 5 B, CE 20 DRosenberg's goal is to produce 180 PDAs per hour. a. What is the cycle time?b. What is the theoretical minimum for the number of work-stations that Rosenberg can achieve in this assembly line?c. What is the idle time?

If his parents cannot alex with college, and two of his scholarships will be awarded to other students if he does not accept them immediately, which is the best option for him?

In the 1970s, kmart used blue light specials to encourage customers to flock to a particular department having a temporary sale. a spinning blue light activated for approximately 30 seconds, and then an in-store announcement informed shoppers of the special savings in the specific department. over time, loyal kmart shoppers learned to flock to the department with the spinning blue light before any announcement of special savings occurred. if kmart was employing classical conditioning techniques, what role did the spinning blue light play?

Alarge tank is filled to capacity with 500 gallons of pure water. brine containing 2 pounds of salt per gallon is pumped into the tank at a rate of 5 gal/min. the well-mixed solution is pumped out at the same rate. find the number a(t) of pounds of salt in the tank at time t.