A183 lb man sits in the middle of a 94 lb, 14 ft long boat. the boat’s prow touches the pier, but the boat isn’t tied to it. the man stands up and walks towards the pier. assume there is negligible resistance between the boat and water, and that the boat’s center of mass is in the middle of the boat. by the time he reaches the boat’s prow, what is the distance between the prow and the pier?

Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.