Exam II Summer 2026.pdf

Once a composite section has been transformed into an equivalent material (Material A) to find the neutral axis and moment of inertia (Itransformed), how do you calculate the actual flexural stress in the untransformed material (Material B) at a distance y from the neutral axis?

Consider a beam segment where the loading is described using singularity functions. If the internal shear force diagram is given by the function:

A simply supported beam of length L carries a concentrated load P at x = L/3 and a uniformly distributed load w spanning from x = L/2 to x = L. Using singularity functions (Macauley brackets), which of the following represents the correct expression for the load intensity function w(x)?

Determine the equivalent impedance seen by the source. \(\Omega\)

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The input to the ac circuit shown is the source voltage, \(v_s(t)=12cos(1000t+15^\circ)\).  Match the variable to the answer.

Determine the phase angle of the capacitor voltage, \(v_C(t)\). Give your answer in degrees.

Determine the real (active) power absorbed by the load. Give your answer in W.

Determine the magnitude of the capacitor voltage, \(v_C(t)\). Give your answer in V.