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an investigator conducts a study on the heat transfer and the effects of inter- nal scale thicknesses on a reheater
a metallurgical examination on the microstructure of boiler tubes helps to understand the heating process that the
the 3-m plank shown in section has a density of 800 kg m3 and is hinged about a horizontal axis through its upper edge
the small access hole a allows maintenance workers to enter the storage tank at ground level when it is empty two
a the two steels asme sa-213 t9 and t91 appear to have almost the same chemical compositions but the creep performance
the semicylindrical steel shell with closed ends has a mass of 266 kg determine the mass m of the lead ballast which
in particle physics a particle with mass m is always in a motion state within a predefined dimension a this means that
the quonset hut is subjected to a horizontal wind and the pressure p against the circular roof is ap- proximated by p0
problem -1the cast-iron plug seals the drainpipe of an open fresh-water tank which is filled to a depth of 20 ft
the conical surface and circular base of the salt- water buoy are fabricated from thin steel plate which weighs 102
the rectangular gate shown in section is 10 ft long perpendicular to the paper and is hinged about its upper edge b the
the hinged gate abc closes an opening of width b perpendicular to the paper in a water channel the water has free
a homogeneous solid sphere of radius r is resting on the bottom of a tank containing a liquid of density pl which is
a channel-marker buoy consists of an 8-ft hollow steel cylinder 12 in in diameter weighing 180 lb and anchored to the
a fresh-water channel 10 ft wide normal to the plane of the paper is blocked at its end by a rectangular barrier shown
a block of wood in the form of a waterproofed 16-in cube is floating in a tank of salt water with a 6-in layer of oil
the uniform 62-kg pole of 150-mm diameter is hinged at a and its lower end is immersed in fresh water determine the
a deep-submersible diving chamber designed in the form of a spherical shell 1500 mm in diameter is ballasted with lead
a 150-kg spherical steel buoy 900 mm in diameter is to be anchored in salt water 15 m below the surface find the mass m
the submersible diving chamber has a total mass of 67 mg including personnel equipment and ballast when the chamber is
a beaker of fresh water is in place on the scale when the 1-lb stainless-steel cylinder is added to the beaker what
the underwater cable is constructed of two portions portion 1 of length 130 m has a net downward force of 0025 n per
for aesthetic reasons chains are sometimes used instead of downspouts on small buildings in order to direct roof runoff
a 50-kg traffic signal is suspended by two 21-m cables which have a mass of 12 kg per meter of length determine the
a spherical buoy used to mark the course for a sail- boat race is shown in the figure there is a water current from