the specific gravity of an material is defined as the ratio of the density of the material to the density of water. the specific gravity of ice is 0.917, whereas that of seawater is 1.025.

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.

change tension

small = small current large mag large current

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.