Which of the following types of waves travels at a different speed through different materials? a. sound waves b. light waves c. seismic waves d. all of these

Which describe reflection? check all that apply. light bounces off a boundary.

According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?

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.