The activation enthalpy for creep is determined in Example Problem 9.1 between the temperatures of 1083 K and 1053 K. Determine the activation enthalpy between 973 K and 1053 K using the stress of log ?=7.10.
What will be an ideal response?
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An optical telescope is able to resolve blue objects better than red objects.
Answer the following statement true (T) or false (F)
A flask and a breaker both have the same depth, as shown on the figure. If they are both filled with water, which will have the greater pressure at the bottom?
What is the energy density in the magnetic field 25 cm from a long straight wire carrying a current of 12 A? (?0 = 4? × 10-7 T • m/A)
A) 7.3 × 10-5 J/m3 B) 3.6 × 10-4 J/m3 C) 3.7 × 10-5 J/m3 D) 1.2 × 10-4 J/m3 E) The density cannot be determined without knowing the volume.
Find the electrical potential at 0.055 m from a point charge of 6.0 mC. (ke = 8.99 × 10^9 N×m2/C2)
a. 1.5 × 10^5 V c. 9.8 × 10^5 V b. 1.2 × 10^7 V d. 3.6 × 10^5 V