A specimen of aluminum having a rectangular cross section listed above is pulled with the tension listed above, producing only elastic deformation. The elastic modulus for aluminum is 69 GPa (or 10X106 psi). Calculate the resulting strain

At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.

Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.

When subject to a steady load (within elastic range) over a long period of time, what is the major difference in material behavoir between steel and plastic?