Final answer:
Polyisoprene, commonly known as rubber, has a Young's modulus in the range of MPa and a dielectric constant between 2 and 4.
Step-by-step explanation:
Polyisoprene, which is commonly known as rubber, exhibits certain properties like Young's modulus and dielectric constant.
Young's modulus is a measure of a material's stiffness or rigidity. It quantifies the amount of stress required to stretch the material. Polyisoprene rubber has a Young's modulus in the range of MPa (Megapascals).
The dielectric constant is a measure of how well a material can store electrical energy in an electric field. Polyisoprene has a dielectric constant that depends on its composition and can vary between 2 and 4.