1) If rain is falling vertically at 2m/s velocity, would a typical person get wetter if they walk slowly or faster between two points a fixed distance apart? Would wearing a brimmed hat help and would its benefit be dependent on the walk speed? 2) Have to sketch a linkage for a torsion spring arrangement that will achieve a certain function. Diagram given. 3) A liquid dispenser needs to dispense liquid through a nozzle at a constant rate. The liquid is held in a long flexible thin-walled polythene bag and is compressed by a spring-loaded platen with a force F. Form an equation that expresses the force F that is needed to generate a pressure P in the bag when the platens are separated by a distance d. To achieve the required constant dispense rate, the bag pressure P must remain constant. This means that the platen force F must increase as the bag empties. Sketch out a possible spring actuation system that would aim to achieve this.