Which represents kinetic energy? a salmon resting in still water a bear holding a salmon it has caught a salmon leaping up a waterfall a bear standing in a field of berries

Kinetic energy id energy of motion  and is equal to 1/2mv^2 where m = mass and v = velocity.

So the answer is a salmon leaping up a waterfall.

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.