What is the endurance limit? Please look at the S-N curve and figure out the endurance. Also, if we want the part to work for one million cycles, what maximum tensile stress can we apply?
700 600 500 cp 400 300 200 100 1E+02 1E+03 1E+04 1E+05 1E+06 1E+07 1E+08 1E+09 1E+10 Number of Cycles
What is the endurance limit? Please look at the S-N curve and figure out the endurance. Also, if we want the part to work for one million cycles, what maximum tensile stress can we apply?
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Related questions
We are supposed to calculate (approximatly) what n level each hydrogen emission start at. We know they all end at 2. This is what I have got so far but I am stuck on how to apply the calculations for the n level. Help!
| Table 2: Spectroscope Calibration | |
| Hg λ | Scale |
| Violet: 404.7 | 4.4 |
| Blue: 435.8 | 4.5 |
| Green: 546.1 | 5.9 |
| Yellow: 579.0 | 7.0 |
| Table 3: H spectra | |||
| Color | Scale (x) | λ (nm) | n-level |
| Violet | 4.2 | 409nm | |
| Blue | 4.4 | 422nm | |
| Green | 4.9 | 455nm | |
| Red | 5.8 | 515nm | |
| Calculations | ||||
| Energy of N levels | Wavelength using calibration curve | E | Equation 2 | n-level |
| -2.18 x 10^-18J (1/3²) = -2.42 x 10^-19 J | Violet: 66(4.2) + 132 = 409nm | (6.63 x 10â»Â³â´)(3 x 10â¸)409 x 10â»â¹= 4.86 x 10^-19 | -2.18 x 10^-18J[(12²) - (13²)] = -3.03 x 10^-19 | |
| -2.18 x 10^-18 (1/4²) = -1.36 x 10-19 J | Blue: 66(4.5) + 132 = 422nm | (6.63 x 10â»Â³â´)(3 x 10â¸)422 x 10â»â¹= 4.71 x 10^-19 | -2.18 x 10^-18J[(12²) - (14²)] = -5.68 x 10^-20 | |
| -2.18 x 10^-18 (1/5²) = -8.72 x 10^-20 J | Green: 66(4.9) + 132 = 455nm | (6.63 x 10â»Â³â´)(3 x 10â¸)455 x 10â»â¹= 4.37 x 10-19 | -2.18 x 10^-18J[(12²) - (15²)] = -1.19 x 10^-20 | |
| -2.18 x 10^-18(1/6²) = -6.06 x 10^-20 J | Red: 66(5.8) + 132 = 515nm | (6.63 x 10â»Â³â´)(3 x 10â¸)515 x 10â»â¹= 3.86 x 10^-19 | -2.18 x 10^-18J[(12²) - (16²)] = -2.65 x10^-21 | |