Why are planets closer to the sun made of different substance than planets father from the sun?

Hydrogen and helium are both members of?

Since the energy was not raising the temperature of the water during these segments, what was the energy used to do instead? your answer must include an explanation of what is happening to the molecules.

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?