You are considering a beam design that has dimensions of b = 18 in., h = 22 in., and d = 19.5 in. The beam is singly reinforced with all of the reinforcement in a single row. The concrete strength is 10,000 psi, and the yield strength of the reinforcement is 60,000 psi. What cross-sectional area of reinforcement is needed to achieve a strain in the reinforcement of 0.0075?

Find the center, vertices, and foci of the ellipse with equation 3×2 + 7y2 = 21. (5 points)

Find the standard form of the equation of the parabola with a focus at (0, 4) and a directrix at y = -4. (5 points)

The sugar present in DNA is aldohexose or aldopentose ?

Recreational drugs are always _________________________________.

Please list all 6 classifications of essential nutrients.  

Write the sum using summation notation, assuming the suggested pattern continues. -8 – 3 + 2 + 7 + … + 67 (7 points)

The Patriot Act was also created in what year?

For the initial analysis-design cycle, total beam depths are typically in the range of L/18 to L/12, where L is the center-to-center span length of the beam.

  During this stage of mitosis, two new nuclear envelopes form around the newly formed daughter nuclei.