Does velocity provide a clear description of motion? Explain

What is work? how much work is done to move an object 0 meters?

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?

Astate of matter all that has define volume and can flow is a(n)