In a tensile specimen with uniform strain, the true strain is equal to the natural log of 1 plus the _____________.
Fill in the blank(s) with the appropriate word(s).
engineering strain
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____ has a negative charge and a mass about 1800 times small than a proton
a. A neutron b. An electron c. A molecule d. A nucleus e. An isotope
If a source of light is approaching us at 3,000 km/sec, then all its waves are
A) redshifted by 1%. B) not affected, as c is constant regardless of the direction of motion. C) blueshifted out of the visible spectrum into the ultraviolet. D) blueshifted by 1%. E) redshifted out of the visible into the infrared.
A particle moving along the x axis has a position given by x = 54t ? 2.0t3 m. At the time t = 3.0 s, the speed of the particle is zero. Which statement is correct?
a. The particle remains at rest after t = 3.0 s. b. The particle no longer accelerates after t = 3.0 s. c. The particle can be found at positions x < 0 m only when t < 0 s. d. All of the above are correct. e. None of the above is correct.
A neutron?
A. A B. B C. C D. D E. zero F. Other G. AA H. BB I. CC J. DD