____ of the hydrogen currently produced today is from natural gas.
a. 50%
b. 65%
c. 80%
d. 95%
d. 95%
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Design a burglar alarm system using logic devices so if any one of three doors opens, a binary signal will trigger an alarm. Assume the doors are equipped with magnetic switches so a closed door switch provides a 0 signal to your circuit, and an open door provides a 1 signal to your circuit. Assume the alarm activates with a one-level signal.
What will be an ideal response?
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Standard units of linear measurement in the SI metric system are all related to the ____.
A. meter B. inch C. mile D. pica
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For the floor system shown in Figure P12.16, draw the influence lines for shear between points B and C and for the moment at points C and E in the girder.
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0.083 × 0.009 =
A) 0.747 B) 0.727 C) 0.000 747 D) 0.000 727
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