Question 2* A thin flat plate is immersed in a fluid stream 20 m/s. Estimate the distance x from the leading edge at which the boundary layer will be I mm or 10 cm for (a) air and (b) water at normal room temperature and pressure. (For air 0.0615 m, 6.47 m; for water 0.044 m, 9,52 m)

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Dependence on mechanical properties

The mechanical properties of materials are those structures that include the reaction to the load used. Metal switching features determine the scope of the usefulness of the content and establish the expected service life. Machine structures are also used to help distinguish and identify material objects. The most common mechanical properties considered are strength, ductility, stiffness, impact resistance, and resilience to fractures.