Write the equations for shear and moment using the origins shown in the figure. Evaluate the shear and moment at C, using the equations based on the origin at point D.
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What is the value of P that makes the work of the two processes the same?
A process consists of two steps: (1) One mole of air at T = 800 K and P = 4 bar is cooled at constant volume to T = 350 K. (2) The air is then heated at constant pressure until its temperature reaches 800 K. If this two-step process is replaced by a single isothermal expansion of the air from 800 K and 4 bar to some final pressure P.
Assume mechanical reversibility and treat air as an ideal gas with 
and 
Excessive amounts of heat generated during braking action increases the coefficient of friction and allows for shorter stopping distances.
Answer the following statement true (T) or false (F)
The three general classes of fittings are screwed, welded, and ____________________.
Fill in the blank(s) with the appropriate word(s).
La selección de cables de accesorios depende principalmente del:
a. tipo de terminación. b. la temperatura de funcionamiento del circuito. c. tipo de control de circuito. d. código de color del circuito.