Image is formed in still water but not shaked water

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?

Name the non metal condut electricity