Locate the centroid y of the cross section. Express your answer to three significant figures and include the appropriate units. y = Submit Part B μA I = Value Request Answer Determine the moment of inertia of the section about the z' axis. Express your answer to three significant figures and include the appropriate units. μA Units Value BE Units SIBL ?

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A 20-cm-diameter steel rod is subjected to a tensile load of 1000KN at one end and is fixed at the other end. Calculate the deflection of the rod if it is 150-cm long. (Esteel 200 GPa) PL d = AE where d= end deflection of the bar in meter (m) P= applied load in newton (N) %3D L = length of the bar in meter (m) %3D A = cross-sectional area of the bar in m E = modulus of elasticity of the material (N/m) O 0.73 mm 0.1.51 mm 0.02 mm 0.24 mm

Item 3 The three bars are made of A-36 steel and form a pin- connected truss. Figure 1 of 1 3 ft 4 ft + 5 ft 3 ft Part A If the truss is constructed when T₁ = 50° F, determine the vertical displacement of joint A when T₂ = 150° F. Each bar has a cross-sectional area of 2 in². (Figure 1) Express your answer with the appropriate units. SA = Submit xa μÀ Xb Value b in X.10n My Answers Give Up Incorrect; Try Again; 3 attempts remaining ? Provide Feedback Continue

Determine the allowable value of force P (in Newtons), if a bar of diameter d = 29 mm and length L = 0.60 m is loaded in tension by force P. The bar has modulus E = 37 GPa and allowable normal stress of 194 MPa. %3D The elongation of the bar must not exceed 3.6 mm. Answer in two decimal places. Numerical values only. Don't indicate units here, just on the submitted solution.

The beam in (Figure 1) is made from three boards nailed together as shown. Part A If the moment acting on the cross section is M = 560 N- m. determine the maximum bending stress in the beam. Express your answer to three significant figures and include appropriate units. HÁ Omax = Value Units igure 1 of 1> Submit Request Answer 25 mm Provide Feedback 150 mm 20 mm 200 mm M 20 mm

An aluminum plate is subjected to uniform stress along its boundaries, as shown in the figure. Determine the change of length of diagonal BD. 120mm 120 MPa 160mm , 100мра C 240 MPa E=80GPa ✓=0.3 G=30GPa Answer = -0.5888mm

Bar ABC is rigid and rotates freely about B. The loads consist of a point load and a uniform temperature change in both bars CD and EF. Determine the temperature change (AT) at which points A and E first come into contact. Report your answer rounded to the nearest degree. 100 in initial gap = 0.11 in F T E A = 2.0 in² AEF EEF = 12,000 ksi aEF LEF 100 in = 13.5 x 10-6 1/°F = 50 in B 14 k 100 in D с ACD= 1.5 in² ECD CD= 6.5 x 10-6 1/°F = 29,000 ksi = 150 in LCD Y Z