You are creating a metal border of uniform width for a wall mirror that is 20 inches by 24 inches. you have 416 square inches of metal to use. write and solve an equation to find the border's width. does doubling the width require exactly twice as much metal? explain.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)

Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation