Angel has rubbed a balloon with wool to give it a charge of -1.0x10 C. He then
-6
acquires a plastic rod with a charge of 4.0x10 C. He holds the rod a distance of
50cm above the balloon. What is the force of attraction between the rod and the
balloon?

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

Can someone me with 3 and 4 plz. this is for masteries test.

According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to another? the volume and the shape stay the same. the volume increases to fill the new container, but the shape stays the same. the volume stays the same, but the shape changes to fit the new container. the volume and the shape change to fill the new container.