A specimen has a yield strength of 1390 psi at room temperature (70 degrees F) and 910 psi when it is heated to 100 degrees F. The plastic specimen has a strength loss from 70 degrees F to 100 degrees. (Hint: use percent change) of -11-1 45.6% as 70 degrees is the reference value 52.7% as 100 degrees is the reference value 25.3% as 100 degrees is the reference value 34.5% as 70 degrees is the reference value

A specimen has a yield strength of 1390 psi at room temperature (70 degrees F) and 910 psi when it is heated to 100 degrees F. The plastic specimen has a strength loss from 70 degrees F to 100 degrees. (Hint: use percent change) of -11-1 45.6% as 70 degrees is the reference value 52.7% as 100 degrees is the reference value 25.3% as 100 degrees is the reference value 34.5% as 70 degrees is the reference value

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.

Question

A specimen has a yield strength of 1390 psi at room temperature (70 degrees F) and
910 psi when it is heated to 100 degrees F. The plastic specimen has a strength loss
from 70 degrees F to 100 degrees. (Hint: use percent change)
of
45.6% as 70 degrees is the reference value
52.7% as 100 degrees is the reference value
25.3% as 100 degrees is the reference value
34.5% as 70 degrees is the reference value

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