Which of these is an example of a composite material? A. Plywood used in houses, which contains wood pieces glued
together in different directions
B. Wood planks used as beams to support roofs
C. Aluminum for the outer layer of an airplane
D. Steel cables designed to be lightweight and strong

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3

more infor would

a lot