For germanium at a tensile stress of 41 MPa and a temperature of 695°C, what is the primary creep mechanism? The shear modulus of germanium is 41 GPa.
What will be an ideal response?
From Appendix B the melting temperature of germanium is 937°C = 1210 K
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On average, how fast do the plates move on the Earth?
A) a few centimeters per year B) a few millimeters per century C) about 1 mile per hour D) a few kilometers per year
A well-known structure located in Britain and investigated by archeoastronomist is called _______________
Fill in the blank(s) with correct word
The Doppler effect is useful in measuring the ____
a. distance to an object b. chemical composition of an object c. temperature of an object d. motion of an object across the line of sight of an observer e. motion of an object toward or away from the observer
What behavior do galactic rotation curves exhibit to suggest the existence of dark matter in an extended halo?
a. Small velocities are seen at large distances from the galactic center. b. Small velocities are seen at distances close to the galactic center. c. Large velocities are seen at large distances from the galactic center. d. Large velocities are seen at distances close to the galactic center.