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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
a floating dredge is anchored in position with a single stern cable which has a horizontal direction at the attachment
the remotely-controlled robotic vehicle of prob 5171 is now connected to a 200-m tether which has a slight negative
calculate the tension t required to steadily pull the cable over a roller support on the utility pole neglect the
a small remotely-controlled underwater robotic vehicle and its tether are positioned as shown the neutrally buoyant
1 the cable of negligible mass is suspended from the two fixed points shown and the tension at the lower support is
1 a mason stretches a string between two points 50 ft apart on the same level with a tension of 10 lb at each end if
1 determine the height above the base of the centroid of the cross-sectional area of the beam neglect the fillets2
determine the x-coordinate of the mass center of the homogeneous hemisphere with the smaller hemispherical portion
neglect the mass of the crossed links and determine the angle for the equilibrium position of the symmetrical
the uniform garage door ab shown in section has a mass m and is equipped with two of the spring- loaded mechanisms