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The linkage of the braking system consists of the pedal arm DAB, the connecting rod BC, and the hydraulic cylinder C. At what angle θ will the force Q be four times greater than the force P applied to the pedal? Neglect friction and the weight of the linkage.
The maintenance costs begin in 31st year at $300,000 annually. How much must be deposited now if the fund will earn 5% interest. How much does this change if the interest rate is 4%
There are two point sources released simultaneously
determine the practical moment strength phi x Msubn for a rectangular reinforced concrete cross section having a width (b of 13 in.) and an effective depth (d of 24 in.) The tension reinforcing steel is four no# 8 bars.
Determine the stability of the wall before and after the rainfall. Neglect seepage effects and which of the two walls in Figure gives the large horizontal force
The length of the pipeline in the building is 60 m, the water temperature is 20.C, and the water pressure on the top floor must be at least 150 kPa. Will a booster pump be required for the building If so, what power must be supplied by the pump
Deflection of a Beam, If a beam of lenght L is fixed at the ends and loaded in the centre of the beam by a point load of F newtons the deflection
A piston-cylinder contains 40 kg water of which 20 kg is saturated liquid. The equilibrium pressure of the system is 100 kPa. a) Find the system initial volume b) The water undergoes an isothermal expansion until the pressure reaches 10 kPa.
Determine the amplitude X of the steady-state motion if the viscous damping coeffi- cient c is (a) 0 and (b) 60 lb-sec/ft Compare these amplitudes to the static spring deflection δst.
List some of the advantages and disadvantages of rectangular primary sedimentation tanks over circular sedimentation tanks which must be considered prior to the selection.
A room 4x5x6 meter is heated by a baseboard resistance heater. We want the heater to raise the room temperature from 7 to 23 deg C in 15 minutes. There are no heat losses from the room, and specific heat may be assumed constant. Power costs 15 cents ..
In order for a shower head to produce a 2.5 gpm flow for 120?F water, what pressure (psi) is needed at the hot water tank if the shower head elevation above the hot water tank is 28 ft? The pipe diameter is 1-in, and assume that the shower head has a..
Determine the volume flow rate of the atmospheric air entering the evaporator of the air conditioner, in m3/min.
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