6. A hot air balloon holds 7.40 x 10 liters of gas. In order for the hot air balloon to rise into the sky, it must
be heated to 120°C. Once the balloon is up in the air, the air needs to be cooled in order for the balloon
to land. If the temperature of the balloon is decreased to 40.0°C. what will the new volume of the gas
be?

I need help idk how to do this

Is it possible to use the energy from two atoms colliding to create a clean burning lasting fuel source with a large amount of force? is it also possible to harness that energy from the two atoms colliding to create a clean energy source that will last for years from just two atoms colliding. is there a possibility to control and store that energy for years but slowly let the energy out enough to power cities cheaper and faster.

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

How do the kidneys affect homeostasis