The mechanism shown is used to lower handicapped persons into a whirlpool tub for therapeutic treatment. in the unloaded configuration, the weight of the boom and hanging chair induces a compressive force of 550 n in hydraulic cylinder ab.

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.

True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure