8. Calculate the horizontal reaction at O in Fig Q8 due to the load P = 177 N applied to the bar OB. The dimensions a, b, c and d are 229, 63, 52 and 68 mm respectively. (Answer in N) Fig Q8 A P C B

-11 A rubber cube R of a side L = 3 in. and cross- sectional area A = 9 in2 is compressed inside a steel cube S by a force F = 5 lb that applies uniformly distributed pressure to the rubber. Assume E 0.3ksi and,, = 0.45. (a) Calculate the lateral pressure between the rubber and steel (disregard friction between the rubber and the steel, and assume that the steel block is rigid when compared to the rubber). (b) Calculate the change in volume of the rubber.

Compare the angle of twist 1 for a thin-walled circular tube (see figure) calculated from the approximate theory for thin-walled bars with the angle of twist 2 calculated from the exact theory of torsion for circular bars, Express the ratio 12terms of the non-dimensional ratio ß = r/t. Calculate the ratio of angles of twist for ß = 5, 10, and 20. What conclusion about the accuracy of the approximate theory do you draw from these results?

The following figure shows the critical position of a crane that supports 2.5 Tons of load by means of a chain. You are delegated the responsibility of building a crane with similar geometric characteristics and load capacity. The diagram of free body of the crane arm can be redrawn as follows.  (check the attached image "fbd") Assuming that the crane arm will be made of steel with yield stress sigmaY =220 MPa and that you must consider a safety factor of F.S.=1.5, propose a profile from the following catalog for the manufacture of the crane arm. Ignore the effects of shear forces on this element. On the other hand, it is very important that you consider the effects of axial loads. Commercial profiles for arm construction. (Check image "profiles")

Need Solution through half hr please

Please solve this question with all details please (handwritten) I will give like if it’s correct

Please solve the following problem following the steps highlighted

Give the following problem a try. If you get stuck, here is one way to work it: Essential Solution Video. If load P = 19.6 kips, determine the normal force in bar (1). D P A 6 ft 32.7 kips 41.7 kips 38.8 kips 34.5 kips 45.4 kips B (1) 4 ft

The figure shows a vehicle jack. In the operating range, a force analysis is required when 0 = 26°. The rectangular bars are all the same with L= 350 mm length, w = 10 mm width and b = 5 mm thickness. Note that bars are designed pinned ends for buckling in the front plane. Calculate the maximum force F (in Newton) for buckling condition only in front plane (parallel to plane ABC), knowing that: Compressive stress yield strength, Sy = 290 MPa Modulus of elasticity, E = 207000 MPa Safety factor n = 3.0 A F b L x 0 Во Front view plane

Find the tension in the cables and the reaction force point O