You come up with a novel food packaging film that effectively blocks air and moisture exchange, thus limiting

microbial activity in the packaged product. You assess this polymeric film for its rheological properties, including

the stress relaxation behavior at high temperatures by applying a constant strain of $0\mathrm{.}01$ to the film at $100C.$

The data collected from the test is shown below:

State which model you would use to analyze this data. Describe the behavior observed. Determine the

relaxation time for this novel packaging film. If the viscosity of the film at $100C$ is $200$kPa s$,$ calculate the

corresponding modulus of elasticity of the material.