Larry finds the angle of elevation of the top of the tower to be 30 degrees. He walks 85 m nearer the tower and finds its angle of elevation to be 60 degrees. What is the height of the tower? A 63.61 83.61 c) 73.61 m 53.61

If the bearing of line AB is S 42° 30' 15" E and the bearing of CB is N 38° 42′ 25" E, find the following: a. Sitting at B, backsighting C, what is the angle to the right? b. For the same instrument scenario, what is the deflection angle to point C? Hint: Point B will be at the center.

What is the equation to convert the Azimuth below to a Bearing? οεε οτε οτε οοε οστ 087 οιτ 097 OSZ Obz οετ οττ οΙΖ Ο 300 310 320 330 340 350 10 20 30 40 50 60 70 120 130 140 150 160 170 180 190 200 210 220 230 240 80

P.16.15. A thin-walled closed section beam of constant wall thickness t has the cross-section shown in Fig. P.16.15. Assuming that the direct stresses are distributed according to the basic theory of bending, calculate and sketch the shear flow distribution for a vertical shear force S, applied tangentially to the curved part of the beam. Answer: 901 = Sy(1.61 cos 0-0.80)/r Sy 7.3 912= (0.57s² - 1.14rs +0.33²)