The electron structures of atoms are not involved in the emission of: a. gamma rays b. photoelectrons c. x-rays d. spectral lines

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 part of the ear is names after tools, such as the hammer and the anvil?

Photons with the highest energy have the longest period