A liquid is far less compressible than a gas.
A gas is far less compressible than a liquid.
A liquid is more combustible than a gas.
A gas is more combustible than a liquid.
They mix well together
One liquid will float on the other
They will become an entrained solution
They will repel each other and react violently
Feet per second
Gallons per minute
Cubic feet per second
Cubic gallons per minute
Friction, applied forces, and gravity
Friction, inertia, and atmospheric pressure
Gravity, atmospheric pressure, and inertia
Gravity, atmospheric pressure, and applied forces
The size of the pipe
The specific gravity of the fuel
The change in gallons per minute
The amount of extinguished velocity
Pounds per square inch
Protons, neutrons, and electrons
Neutrons, elements, and protons
Electrons, molecules, and elements
Electrons, neutrons, and matter
Protons have positive charges, and electrons have neutral charges
Protons have neutral charges, and electrons have positive charges
Protons have negative charges, and electrons have positive charges
Protons have positive charges, and electrons have negative charges
The outermost shell
The middle shell
The second shell
The first shell
An atom that lost a proton and has more electrons
An atom that lost an electron and has more protons
An atom that has an equal number of electrons and protons
An atom that cannot throw off any protons
A natural magnet
An artificial magnet
An electromechanical magnet
When the north pole of a magnet is placed near the north pole of another magnet.
When the south pole of a magnet is placed near the north pole of another magnet.
When a permanent magnet and a temporary magnet are put together.
Magnetic lines of force never cross each other.
Magnetic and heat
Chemical and heat
Chemical and mechanical
Magnetic and mechanical