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Two objects A and B are projected vertically at 130m above the ground level. A is projectedup with a velocity of 30m/sec and B is projected downwards with the same velocity. Find the time taken by each object to reach the ground.
Often times, this pressure comes from the fact that community's water supply is stored in an elevated reservoir. Determine how high an elevated reservoir must be so that the water supply has a pressure of 50 psi. Given: the unit weight of water is..
A 12%,$ 50,000 bond is offered for sale at $45,000. If bond interest is payable monthly and the bond matures in 20 years, what nominal and effective rates of return per year will the purchaser make on the investment
A computer technician can handle on average 5 service calls per day. The cost of adding a technician (C1) is $200 per day and the estimated cost of waiting per incident (C2) is $250 per day.
Determine the range of allowable values of the tension in wire BD if the magnitude of the couple at the fixed support C is not to exceed 100 N .m.
A 1.50 L buffer solution is 0.250 M in HF and 0.250 M in NaF. Calculate the pH of the solution after the addition of 0.0500 moles of solid NaOH. Assume no volume change upon the addition of base. The Ka for HF is 3.5 x 10 -4 .
Consider two identical rooms, one with a 2-kW electric resistance heater and the other with three couples fast dancing. In which room will the air temperature rise faster?
A rod consisting of two cylindrical portions AB and BC is restrained at both ends. Portion AB is made of steel (E=29x10^6 psi, α=6.5x10^-6) and portion BC is made of aluminum (E=6.5x10^-6 psi, α=13.3x10^-6).
A steel pipe carries an industrial oil under pressure. The steel pipe inside diameter is 36 in, the pressure head on the fluid is 383.0 ft. A)- Find the internal fluid pressure in psi
using a prism and prism pole in conjunction with a total station, the bottom of the prism pole is placed on point A. the distance from the bottom of the prism pole to the center of the prism (HR) is 4.97 feet.
determine the horizontal spacing of the vertical drains if the drains are installed in triangular grid to reach 90% of primary consolidation in 1.5 years after the commencement of fill placement
A horizontal pre-stressing force of 500kN is applied to rectangler beam. the beam has a depth of 500mm and a width of 250mm. the force is applied at a distance of 80mm below the x-x axis. what is the stress along the top edge and the bottom edge caus..
A reinforced concrete beam d = 18 in , and n = 10. find the diamensions b and a , that will resist a bending movement of 60 kip,ft with balanced stress reinforcement if fc =1600 psi and fs = 20 ksi
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