18 newton’s lifted 5 meters? how much is in joules?

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?

How do you tell if someone actually cares about you? and just say they do?

What occurs during a combustion reaction