What is a ribbed concrete slab-on-ground and its advantages over a constant-thickness slab?
What will be an ideal response?
A ribbed concrete slab consists of a slab intercepted by closely spaced beams in both directions. The provision of beams (ribs) makes the slab stronger than a constant-thickness slab with the same amount of concrete.
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The largest origin of nonpoint pollution in the United States is
What will be an ideal response?
The subsequent problems, each of which is independent of the others, deal with the figure below,
If X is 0 and the NO button is held down, Y is
A. 0 B. 1
What information must be contained in the Safe Diving Procedures Manual?
What will be an ideal response?
For the circuit shown in Figure P15.41, let vin be a 1-kHz sinusoidal signal with 0° phase angle, 0 VDC offset, and 20-V peak-to-peak amplitude. Let vG be a rectangular pulse train, with pulse width 10 ?s and period 100 ?s with the leading edge of the first pulse at t = 0.
a. Sketch vo if the RC circuit has a time constant equal to 20 ?s.
b. Sketch vo if the RC circuit has a time constant equal to 1 ms.
