During engine cranking the engine should make a rhythmic sound.

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?

What determines the amount of inertia an object has

Explain why electric current cannot exist if a current doesn't have a voltage source.