A part is to be made from the 4340 steel in Table 11.2. The part has a yield strength of 1515 MPa. This design requires that the calculated fracture stress must be at least twice as large as the yield stress, to ensure that fracture does not occur before yield. What is the minimum detectable crack length capability required of the NDT equipment to ensure this condition?
What will be an ideal response?
Physics & Space Science
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I the inductance and the capacitance both double in an LRC series circuit, the resonate frequency of that circuit will
A. decrease by a factor of 1?2. B. decrease by a factor of 1/4. C. increase by a factor of 2. D. increase by a factor of 4.
Physics & Space Science
The SI unit for electric potential energy is equivalent to
A. N·m. B. V·C. C. N/m. D. C·m2. E. none of these choices are correct
Physics & Space Science
A star's ________ parallax is found by using the spectral lines to estimate the spectral class and luminosity of distant stars
Fill in the blank(s) with correct word
Physics & Space Science
A person looking through eyeglasses sees
a. real images. b. virtual images. c. erect images. d. inverted images. e. polarized images.
Physics & Space Science