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Two 10 mm thick steel plates are fastened together by means of two 20mm bolts that fit tightly into the holes. if the joint transmits a tensile force of 45 kn
determine
a.) the average normal stress in the plates at a section where no holes occur
b.) the average normal stress at the critical section
c.) average shearing stress in the bolts
d.) average bearing stress between the bolts and the plates
The two disks each have a mass of 25kg and are attached at their centers by an elastic cord that has a stiffness of k = 1.6kN/m . Determine the stretch of the cord when the system is in equilibrium
A two-bed carbon adsorption system is to be designed to handle 8000 acfm of air containing 700 ppm of hexane. Laboratory studies indicate that carbon can adsorb 8lb hexane per 100 lb carbon under the conditions at which the system will be operated.
What force is necessary to lift a thin 25-mm diameter ring out of :
An 8-in-diameter pipeline (f=0.028) 500 ft long discharges a 3-in-diameter water jet into the atmosphere at a point that is 250 ft below the water surface at intake.
The cash flow sequence $70+4k, where k is in years and cash flow is in $1000. What is the future work of the entire cash flow series in year 10 at 10% per year
if D has a mass of 600 kg, determine the required mass of C, the maximum sag h of the cable, and the length of the cable between the pulleys A and B. The Beam has a mass per unit length of 50 kg/m.
A 1-m diameter cylindrical mass, M, is connected to a 2-m widerectangular gate. The gate is to open when the water level,h, drops below 2.5 m. Determine the required value forM. Negate friction at the gate hinge and the pulley.
What are the annual runoff coefficient (Runoff /Rainfall ratio) for the sub areas and for the total watershed taken as whole Sub-area Area (m2)/ Annual Precipitation (mm)/ Annual Evaporation (mm) A 10.7 1030 530 B 3.0 830 438 C 8.2 900 430 D 17...
a 2.50-g sample of a large biomolecule was dissolved in 25.0 g of carbon tetrachloride. the boiling point of this
The gate is rectangular with a horizontal width of 2m perpendicular to the paper. For a depth h = 3m of water, calculate the required force exerted by the hydraulic cylinder to keep the gate just closed.
If a hose whose discharge end is left open on the ground is first connected to the lower valve and then to the higher valve, will there be any difference between the discharge rates of water for the 2 cases? Neglect frictional effects.
An inventor claims that an engine produces 120 kw with a fuel consumption of 20 kg/h. The energy content of the fuel is 36,00 kJ/kg. The energy is received at a mean temperature of 500C and rejected at a mean temo of 50 C.
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