A car uses 100 watts of power. what was the energy if it took only 25 secs to use this much power

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change

If you put a helium-filled balloon in the refrigerator, what will happen?

What property of a wave determines the pitch? what property of a wave determines the volume? describe your reasoning and include the ways the simulation and tone generator influenced your thinking.will mark brainiest if your answer does make sense to the question asked.