How much clay must be added to 10 kg of polyethylene to produce a low-cost composite having a modulus of elasticity greater than 120,000 psi and a tensile strength greater than 2000 psi? The density...

How much clay must be added to 10 kg

of polyethylene to produce a low-cost

composite having a modulus of elasticity

greater than 120,000 psi and a tensile

strength greater than 2000 psi? The density

of the clay is 2.4 g/cm3 and that of the

polyethylene is 0.92 g/cm3. (See Figure 17-6.)