I’m doing a lab which measures how the difference in frequency can affect the wavelength of sand. What theory/law explains this?

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?

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static

Gas cloud 1 is likely to form a star. gas cloud 2 is not. based on this information, match the given conditions with each cloud