An engine has a piston with a surface area of 12.56 inand can travel 3.48 inches. What is the potential change in volume of the cylinder, given that AV-area x length​

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.