Why can people float effortlessly on the dead sea?

There water has a lot of salt in it, so it would be denser. People float better when the water is denser.

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.