The two concentrated loads, supported on the combined footing in Figure P5.52, produce a trapezoidal distribution of soil pressure. Construct the shear and moment curves. Label all ordinates of the curves. Sketch the deflected shape.
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The ____________________ is a mechanical control that keeps the refrigerant pressure in the evaporator from going below a predetermined point.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements is true?
A. The change in internal energy of an ideal gas can be calculated using the equation dU = CPdT, even if the pressure of the gas isn’t constant. B. The change in enthalpy of a supercritical fluid can be calculated using the equation dH = CPdT, even if the pressure of the fluid isn’t constant. C. The expression CP = CV + R was derived for ideal gases, but is frequently applied to liquids and solids as well. D. The properties tabulated in the steam tables are all state properties, but none of them are extensive properties. E. WEC = -PV, so U - WEC is equal to H.
A suitably strong aggregate material for use in high-strength concrete is _____
a. slag b. soft sandstone c. coal d. shale
A NAND gate cannot be used to construct a bounceless switch.
Answer the following statement true (T) or false (F)