Hinge is a joint. It is designed to join two 'arms' together while letting them move freely. A lever is when a pivot, load, effort is present. Although hinge itself is not a lever, but taking our biceps as an example, that would be a Class 3 lever.
Physical properties. Tungsten is a hard brittle solid whose color ranges from steel-gray to nearly white. Its melting point is the highest of any metal, 3,410Â°C (6,170Â°F) and its boiling point is about 5,900Â°C (10,600Â°F). Its density is about 19.3 grams per cubic centimeter. Tungsten conducts electrical current very well.
Zinc is malleable if you heat it to between 100 degrees C and 150 degrees C; outside that temperature range it's brittle. As to whether it's ductile...no, and that's immaterial anyway because the wire would break if you made any.ell one of the physical properties of metals is being ductile and zinc is a metal so the answer is yes= not really Zinc is hard and brittle which makes it hard to stretch it. â¦ Tungsten is a metal and is to hard to even try to turn into a wire. 6 people found this useful.