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The steel oil container shown in the figure has a circular lid centred on its sloping wall. The lid is hinged at A and held closed with a frictionless stopper at B. The lid is made of 2.5cm thick stainless steel (ρ=8000kg/m³).
a. Draw a clear diagram showing all the forces acting on the lid;
b. Calculate the hydrostatic force on the lid;
c. Determine the location where the hydrostatic force acts; and
d. Calculate the force on the stopper.
An unconfined aquifer is called to be 32 m thick below the water table. A constant discharge of 2 cubic metres per minute is pumped out of the aquifer by a tubewell till the water
Define the Pump and Motor Efficiencies Equations account for the loss of power, primarily due to mechanical friction as a result of rotating components in the pump and motor.
A contractor purchased an excavator for $100,000. The life expectancy is 10-years. With the annual interest rate at 7%, the annual cost for the excavator is most nearly: Solutio
Figures (a) and (b) respectively give details of a simply-supported bridge beam and its (idealised) cross-section. In addition to the dead load of 25 kN/m (including self weight),
what type of ethics is environmentel ethics
How do we get electricity even when the gates of a dam were closed?
Passenger Conveyors: Passenger conveyors are used at locations where a large concentration of passengers has to be moved from one place to another. Escalators are used to conv
1. Draw the projections of a line AB that is 50 mm long and is parallel to both the HP and the VP. The line is 40 mm above the HP and 25 mm in front of the VP. 2. A line AB, 50 mm
Write some appplications of lagrange''s mean value thorem
Landslides induced by rainfall After rainfall, groundwater pressure is built up and this elevates ground water table. Water inside the pores of soil reducesthe effective stres
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