Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

What are chlorofluorocarbons and what impact do they have on the atmosphere?

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

What happens when you slowly pulled the carboard?