Nuclear fusion is when two atoms of join together to form .

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?

What is the relationship between the direction of motion of the balloon and the wind currents

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