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Prepare a sample sealant joint, using a backer rod and silicone sealant obtained from a hardware store or building materials supplier. Apply the sealant to two parallel pieces of quarry tile or glass that are taped together with a spacer between them. After the sealant has had time to cure (a week or so), remove the tape and spacer and test the joint by pulling and twisting it to fi nd out how elastic it is and how well the sealant has adhered to the substrate.
a cantilevered bean has a lenght of L, a cross section area of A, and a flecural rigidity of EI. The free end is free to rotate and displace due to bending. derive the stiffnes of the cantilevered bean. Assume small deformations.
For construction of an embankment, the soil is transported from a borrowed area using a truck which carries 5.5 m^3 of soil at a time, with the following details: For the Borrowed Pit: bulk unit weight= 16 KN/m^3
Given that an aircraft flying at FL350 encounters a tailwindof 35 knots and the instrument in the cockpit shows anindicated airspeed of 310 knots. What is the standard atmosphere atthis altitude?
1. the maximum eight-hour average concentration of carbon monoxide co in an urban area is measured to be 15 ppm. the
A typical propane tank that we use for barbeque initially contains a pressure of 10 psi. The pressure is low, so we take it to the local store to fill the tank with more propane. After filling,the pressure is 100 psi.
Block A, 5lb, strikes block B, 10lb. Block A is moving with the intial velocity, Va, and block B is at rest. After striking block B, block A travels 2 in. to the right and block B travels 3 in. to the right.
A steel bar is attached to a wood support beam with four 20 mm diameter lag screws. The steel bar is 75-mm-wide by 6-mm-thick. For the steel bar, the yield strength is 260 MPa and the ultimate bearing strength is 350 MPa.
Route a trianglular hydrograph through a 100 foot wide rectangular channel with a bed slope of 0.015 and a Mannings n of 0.035. Take a distance between cross-sections of 3000 ft.
The two pulleys are riveted together to form a single rigid unit, and each of the two cables is securely wrapped around its respective pulley. If point A on the hoisting cable has a velocity v=0.9 m/s,
A result of a 7-day BOD test performed on a sample from anoligotrophic lake was 10 mg/L. The base 'e' BOD rate constantdetermined from previous studies was estimated to be 0.10d-1.
For unidirectional carbon/epoxy tape at a 60% fiber volume fraction, calculate E11 and E22. Given Ef= 211 GPa and Em =10 GPa. Calculate the fiber weight fraction. Given pf=1.95 g/cm3 and pm =1.3 g/cm3.
A bar of monel metal (length L=9 in., diameter d=0.225 in.) is loaded axially by a tensile force P. If the bar elongates by 0.0195 in., what is the decrease in diameter d What is the magnitude of the load P
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