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The energy required to snap (break) a brittle fiber is equal to the strain energy stored (which is equal to the area under the stress–strain diagram) ...

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A sequential circuit is to be used to control the operation of a vending machine which dispenses a $0.25 product. The circuit has three inputs (N, D, and Q) and two outputs (R and C). The coin detector mechanism in the vending machine is synchronized with the same clock as the sequential circuit you are to design. The coin detector outputs a single 1 to the N, D, or Q input for every nickel, dime, or quarter, respectively that the customer inserts. Only one input will be 1 at a time. When the customer has inserted at least $0.25 in any combination of nickels, dimes, and quarters, the vending machine must give change and dispense the product. The coin return mechanism gives change by returning nickels to the customer. For every 1 output on C, the coin return mechanism will return one nickel to the customer. The product is dispensed when the circuit outputs a single 1 on output R. The circuit should reset after dispensing the product. Derive a Moore state table for the sequential circuit, and for each state indicate how much money the customer has inserted or how much change is due. 
A sequential circuit is to be used to control the operation of a vending machine which dispenses a $0.25 product. The circuit has three inputs (N, D, and Q) and two outputs (R and C). The coin detector mechanism in ...

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Using both LRFD and ASD, select the most economical sections, with Fy =50 ksi, unless otherwise specified, and assuming full lateral bracing for the compression flanges. Working or service loads are given for each case, and beam weights are not included.
Using both LRFD and ASD, select the most economical sections, with Fy =50 ksi, unless otherwise specified, and assuming full lateral bracing for the compression flanges. Working or service loads are given for each case, and beam weights are not ...

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P1.8. The shear modulus (G) of steel and a quasi-isotropic carbon fiber epoxy is 78 and 17 GPa, respectively. The mean diameter (D) of a thin-walled steel torque tube is 25 mm and its wall thickness (t) is 3 mm. Knowing that the torsional stiffness of a thin-walled tube is propor- tional to D’IG, calculate 1. Mean diameter of a composite tube that has the same torsional stiffness and wall thickness as the steel tube 2. Wall thickness of a composite tube that has the same torsional stiffness and mean diameter as the steel tube 3. Difference in weight (in percentage) between the steel tube and the composite tube in each of the previous cases, assuming equal length for both tubes P1.9. Using the information in Problem P1.8, design a composite torque tube that is 30% lighter than the steel tube but has the same torsional stiffness. Will the axial stiffnesses of these two tubes be the same?
P1.8. The shear modulus (G) of steel and a quasi-isotropic carbon fiber epoxy is 78 and 17 GPa, respectively. The mean diameter (D) of a thin-walled steel torque tube is 25 mm and its wall thickness (t) is 3 mm. ...

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The Pratt roof trusses are uniformly spaced every 15 ft. The deck, roofing material, and the purlins have an average weight of . The building is located in New York where the anticipated snow load is and the anticipated ice load is .These loadings occur over the horizontal projected area of the roof. Determine the force in each member due to dead load, snow, and ice loads. Neglect the weight of the truss members and assume A is pinned and E is a roller.Ask a question and you will be sure to find an answer!
The Pratt roof trusses are uniformly spaced every 15 ft. The deck, roofing material, and the purlins have an average weight of . The building is located in New York where the anticipated snow load is and the anticipated ice ...

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P1.2. The material of a tension member is changed from AISI 4340 steel to a unidirectional high-modulus (HM) carbon fiber-reinforced epoxy 1. Calculate the ratio of the cross-sectional areas, axial stiffnesses, and weights of these two members for equal load-carrying capacities 2. Calculate the ratio of the cross-sectional areas, load-carrying cap- acities, and weights of these two members for equal axial stiffness (Hint: Load strength× cross-sectional area, and axial stiffness modulus × cross-sectional area)
P1.2. The material of a tension member is changed from AISI 4340 steel to a unidirectional high-modulus (HM) carbon fiber-reinforced epoxy 1. Calculate the ratio of the cross-sectional areas, axial stiffnesses, and weights of these two members for equal load-carrying ...

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Problem: Water decelerates in a diffuser following the relation 𝑉=𝑉𝑜(1−𝐴𝑥2𝐿2) where x is the distance from the start of the diffuser. At time = 0, the flow to the diffuser is turned off slowly and the inlet velocity V0 decays with ...

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