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The diving bell shown in Fig. 5.2 weighs 72 kN and has a volume of 6.5 m3. Find the tension in the cable when the sub is
(a) hanging above the water, and
(b) once the sub is lowered into the sea water. When released from the cable, will the bell tend to sink or float?
The engine of the van produces a constant driving traction force F at the wheels as it ascends the slope at a constant velocity v, determine the magnitude of the acceleration of the van,in m/s^2 .when it passes point A and begins to travel on a level..
Calculate the force required in direct extrusion of 1100-O aluminum from a diameter of 6 in. to 2 in. Assume that the redundant work is 30% of the ideal work of deformation, and the friction work is 25% of the total work of deformation.
vector a has components ax 1.24 ay 2.21 vector b has components bx 4.06 b-y -3.66. find the counterclockwise angle
Saturated Steam is to be condensed on the shell side of a heat exchanger at 75°F. Cooling water enters the tubes at 50°F at a rate of 45 lbm/s and leaves at 65°F. Assuming the heat exchanger to be well-insulated, determine the rate of heat transfer i..
a robot unloads a finished component from a machine and places it on a gravity conveyor. the conveyor accelerates from
h2o at 1000of 140 psi enters a turbine and expands to 5 psi. the mass flow rate is 4 lbms and the power developed is
a condenser condenses saturated water vapor at 100 kpa to a saturated liquid. the steam enters at 3 ms and exits at 100
Estimate the current at which a 1-mm-diameter nickel wire will burn out when submerged in water at atmospheric pressure. The electrical resistance of the wire is 0.129 D/m.
the heat transfer coefficient for air flowing over a sphere is to be determined by observing the temperature -time
a boiler must supply steam at 250 psia and 650 fahrenheit. if the water supplied to the boiler is saturated liquid at 3
brass balls each of mass 0.258 kg and initially at 130degc are quenched in a water bath at 50degc for 2 minutes at a
a civil engineer must design a wheelchair accessible ramp next to a set of steps leading up to a building. the height
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