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A channel-marker buoy consists of an 8-ft hollow steel cylinder 12 in. in diameter weighing 180 lb and anchored to the bottom with a cable as shown. If h = 2 ft at high tide, calculate the tension T in the cable. Also find the value of h when the cable goes slack as the tide drops. The specific weight of sea water is 64 lb /ft3. Assume the buoy is weighted at its base so that it remains vertical.
an adiabatic control volume with steam as the working fluid operates at steady flow conditions with the inlet state of
an electronic instrument is to be isolated from a panel that vibrates at frequencies ranging from 25 hz to 35 hz. it is
Consider a saturated clay layer of 4 m thickness on top of a deep layer of stiff sand. The clay has an initial porosity n=40%. Following a lowering of the water level in the clay, the clay porosity is reduced to 30%. What is the change of thickness S..
a steady flow steady state air compressor handles 4000 ft3min measured at the intake state of 14.1 psia 30.0degf and a
a piston-cylinder assembly contains 5 kg of a two-phase liquid-vapor mixture of water having 32 quality is initially at
a piston-and-cylinder device contains 10 kmol of n-pentane at -35.5 c and 100 bar. slowly the piston is moved until the
a helical compression spring is made of no. 18 .0147 in wire having a torsional yield strength of 108 kpsi. it has an
an engineer is installing an open-end mercury manometer attached to a pipe that will eventually carry pressurized gas.
The potential energy U of two atoms, a distance r apart, is U= -A/r^m + B/r^n. Show that the condition n > m must be satisfied in the equation for the potential energy U in the above question for the molecule to have a stable position.
A design engineer is considering a structural change that will increase the tensile load on this member. What is the maximum tensile load that can be permitted without producing extensive plastic deformation of the bar? Give your answers in both newt..
1 a highway patrol officer on the ground uses a radar gun to measure the speed of a suspects car to be 60 ms. a patrol
the anode and cathode reactions for a lithium-iodide battery are shown in your textbook on page 330. note that an
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