Tune a pid controller for the following second-order process gain 1.3 deadtime 1.5 minutes first time constant 3.0 minutes second time constant 5.0 minutes below is a plot from which to determine. ti, t2, t3, δο, δρν,0, τ. and k. the method is similar to the example on the chapter 10 powerpoint slides pages 10-45 to 10-48. using the constants obtained above, find the pl controller parameters using the four open loop methods (ziegler-nichols, cohen-coon, cohen-coon with constraints, and fertik). for the fertik method, tune for a disturbance response.

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?

What is the role of lenses in microscopy?