A flag pole 20 m tall with a diameter of 0.12 m has at its top a flag which measures 2 m tall and 2.5 m wide. a) Calculate the aerodynamic force on the combination pole and flag is the wind speed measured at the top of the pole is 20 m/s. b) Discuss factors which may cause your calculation to be higher or lower than the actual force.

The power source in a certain welding setup generates 3500w that is transferred to the low carbon steel work with a heat transfer factor of 0.85. the melting factor in the operation is 0.45. a continuous fillet weld is to be made with a cross-sectional area of 23 mm2 determine the travel speed at which the welding can be accomplished.

Define thermoplastic polymers and thermosetting polymers in terms of their structures, and (ii) describe briefly a process suitable for the production of products from each type of polymer.

Two slings are used to lift a girder of length l and uniform weight per unit length. what is the best position for the slings if the bending moment due to the weight of the girder is to be kept to a minimum?