Within the chain of infection, what is the reservoir? a. a way for the pathogen to enter the body b. the way for a pathogen to leave the host c. the location/place where the pathogens live and grow d. the way a pathogen can be transmitted

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.