20 ksi 40 ksi 60 ksi The differential element above represents the state of plane stress at a point in a steel beam. Which of the following best represents the magnitude of shear stress on a differential element at the same point but oriented 40 degrees clockwise from the element shown? O52.5 ksi O46.3 ksi 12.5 ksi

A shear force of V = 240 kN is applied to the box girder. (Figure 1) Figure Part A 9A= 28.82 Part B 200 mm B 90 mm μÅ LO 9B = 16.42 200 mm 10 mm. A μÅ C D 180 mm Determine the shear flow at point A. Express your answer to three significant figures and include the appropriate units. MPa 90 mm Submit Previous Answers Request Answer 100 mm 190 mm -10 mm X Incorrect; Try Again; 5 attempts remaining Enter your answer with a different unit type. Review a list of acceptable units. MPa Determine the shear flow at point B. Express your answer to three significant figures and include the appropriate units. ? Pocke Submit Previous Answers Request Answer 1 of 1 ? > Incorrect; Try Again; 5 attempts remaining Enter your answer with a different unit type. Review a list of acceptable units.

Civil engineers often use the straight-line equation,   = b 0 + b 1x, to model the relationship between the shear strength y of masonry joints and precompression stress, x. To test this theory, a series of stress tests were performed on solid bricks arranged in triplets and joined with mortar. The precompression stress was varied for each triplet and the ultimate shear load just before failure (called the shear strength) was recorded. The stress results for n = 7 resulted in a Coefficient of Determination of 0.8436. Given that r 2=  0.8436, give a practical interpretation of r 2, the coefficient of determination for the least squares model.   a. We expect to predict the shear strength of a triplet test to within about 0.8436 tons of its true value. b. About 84.36% of the total variation in the sample of y-values can be explained by (or attributed to) the linear relationship between shear strength and precompression stress. c. In repeated sampling, approximately 84.36% of…

two steel plates are held together by two  bolts.  a)determine the required diameter of the bolts if the failure shear stress is 300MPa using a factor of safety of 2.   b)using the answer from a, determine the steel plates thickness if the failure bearing stress of the steel is 350MPa using factor of safety as 1.5

Two bolts are used to form a joint connecting rectangular bars in tension as shown. If the bolts have a diameter of 11.2mm and the load is P = 99KN, determine the average shear stress (in MPa) on the bolt surfaces that are subjected to direct shear. Note: Do NOT include units in your answer P/2 P/2 w/2 Answer: page Next page cloudy ecolutions ARKER HITEBOARD 00000 .. BIC Velleda LOW ODOR ODEUR NEUTRE

10 ft 7.5 in 400 lb 400 lb 30 3.5 in The wood grain the tension member above are oriented approximately 30 degree to horizontal. Which of the following is closest to the magnitude of shear stress acting parallel to the grain? O11.4 psi O3.81 psi O 15.2 psi 6.60 psl

I have been stuck on this problem for while thar area is 779.1 mm^2  sigma_x is 120.6497159 sigma_y is 0 and tau_xy is 0. Beta is 20 degrees

A lever is attached to a shaft with a square shear key as shown. If the force applied to the lever is P = 395 N, determine the shear force applied to the shear key. 42 mm. ↓ Shear key O 10.90 KN O 18.31 KN O 9.70 KN O 14.25 KN O 13.17 kN 700 mm C Shear key detail