10n to the right, 4n to the left, and 7n to the left equals what its force of motion btw.

Kinetic energy = 1/2mv^2. since the mass is constant we can form a ratio of it's kinetic energy at 60 divided by that at 30 to see ke(60)/ke(30) = +(60^2)/30^2). this may be said to 300% increase.

The answer is b.the gaseous state is electrically positive, while the plasma state is electrically negative.