The steel pipe AB has a 102-mm outer diameter and a 6-mm wall thickness. Knowing that arm CD is rigidly attached to the pipe, de
termine the principal stresses and the maximum shearing stress magnitude at point K. (Round the final answers to one decimal place.) Given: F = 13 kN
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Answer:
Explanation:
First of all, let's calculate the energy of a single photon of wavelength
which is given by
The power of the flash is
and the time it lasts is
so the total energy delivered in one flash is
This energy contains exactly N photons each of energy , so the number of photons emitted in one flash is