Question 19 of 30 A helium balloon's temperature is raised by 1°C. Will this cause its molecules to move faster or slower?
they will move at the same speed
faster
slower​

The four giant gas points that are made primarily of lightweight elements are

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.

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