EE 241 – Prelab #311. Derive (from the integral formula for RMS given in narrative 3) a relationship for Vrms in terms of Vp for a sinusoid. Let the sinusoid v(t) be expressed as: v(t) =VP cos (ωt + θ) where the peak voltage VP is nonnegative, the phase angle θ is real, and the frequency ω is positive. (To use the formula for Vrms you must know how ω and the period T are related.)

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.