For germanium at a tensile stress of 410 MPa and a temperature of 332°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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The main constituent of the Martian atmosphere is
A) methane. B) helium. C) carbon dioxide. D) hydrogen. E) nitrogen.
Exhibit 7-1
Three 5.0-kg masses are located at points in the xy plane as shown in the figure.
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Use this exhibit to answer the following question(s).
Refer to Exhibit 7-1. What is the magnitude of the resultant force (caused by the other two masses) on the mass at x = 0.40 m, y = 0?
A. 2.2 × 10?8 N B. 1.9 × 10?8 N C. 1.4 × 10?8 N D. 1.6 × 10?8 N E. 2.5 × 10?8 N
What kind of lens is it that has a power of +10 Diopters and a first surface center of curvature in front of the lens?
A) double convex B) double concave C) converging meniscus D) plano concave E) plano convex
In terms of the wavelength of light in soapy water, what is the minimum thickness of soap film that will reflect a given wavelength of light?
A) one-fourth wavelength B) one-half wavelength C) one wavelength D) two wavelengths E) there is no minimum thickness