A bar with a square cross-section is subject to tensile force along its long axis, as illustrated. Knowing the square normal cross-section has edge length of b, the bar total length is L, and the tensile force is F. NOT drawn to exact scale Which of the following gives the average normal stress along the long axis? 0 OFF O bL F OF. bL

1. the impact that 'Be my Eyes" has on people with disabilities. 2. The impact " Assistive Touch" has on disabled people.

a) If a pneumatic cylinder -driven power tool has the following data as shown in Table 1, determine the rate of reciprocation in rpm. Table 1 Piston diameter 44.5 mm Piston stroke 152 mm Air pressure and temperature (at the 687 kPa gauge and 27°C pneumatic cylinder Available flow rate 0.05 m³/min (at standard atmospheric conditions of 101 kPa and 20°C)

Use the following paragraph to answer the question below. Robotic arms can have different end effectors. An end effector is the attachment that is put on the end of the robotic arm. An end effector may be a claw tha can pick things up and place them. Other end effectors include a welding tool and a drill. What is the main Idea of this paragraph?

Summarise and discuss the general strategies to select CAD/CAM software and tools for Computer Aided Process Planning (CAPP) and optimisation of design and manufacturing operations, especially to generate optimal CNC machining toolpaths, simulate the generated CNC machining toolpaths, create G-Code programs for CNC machining operations, simulate and optimise the Additive Manufacturing & 3D Printing (AM-3DP) processes (Topology optimisation, Simulations of support generation, Simulations of deformation and shrinkages, Simulations of Nesting operation, Optimisations of part orientations).

Explain why you should use RAC and what its main characteristics are.