A B lo D E O O O A Which of the following statements about advantages and disadvantages of pneumatics is correct? B Advantages Constant speed of the piston rod is possible. Pressurized air can be transported by air hoses. High speed motion with pneumatic drives can be achieved Compressed air can escape without noise D Compressed air can be stored in an air reservoir (accumulator). Disadvantages Pressurized air is temperature sensitive. The cylinder forces can not be adjusted continuously. Pneumatically actuated tools are not overload protected. Compressors need a high noise protection. Leakages cause an increase in energy costs. S=

Part A The pole is subjected to the forc F which has components F = 1.4 kN and F₂ = 1.05 kN. If 3 = 84°, determine the magnitude of Fy. Express your answer with the appropriate units. F₂ = Submit Part B O μA Request Answer Determine the magnitude of F. Express your answer with the appropriate units. НА F= Value Unit Submit Request Answer Units ? ? XB F F

A cross-section of a beam is shown in Figure Q2. If the shear force in this section is V = 281 KN, determine the value and the location of the maximum shear stress in the section. In Figure Q2, a = 72 mm and the origin of the coordinate system is at centroid of the cross section. Z A a AY 2a O 4a Figure Q2 J.L B 3a a