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A sliding collar of m=80Kg falls on to a flange at the bottom of a vertical rod. Calculate the height h through which the mass m should drop to produce a maximum stress in the rod of 350 Mpa. the rod has length L=2m, cross-sectional area A=250mm2, and modulus of elasticity E=105Gpa
when the 35-kg cylinder is released from rest the spring is subjected to a tension of 75 n.a determine the speed of the
A launch approaches a wharf at a speed of 10.5 knots(=5.4m/s).The engine are put in the reverse when the launch is 10 m from the wharf, the retardation being 1.25m/s squared. will the launch come to rest before hitting the wharf.. If not, with wha..
vinefera grapes are picked when the outside temperature is 35c and then cooled to 5c within a 12-h period. for each
the amount of a uniformaly distributed radioactive contaminant contained in a closed reactor is measured by its
a container of diamer 6cm and height 10cm is filled with water 7cm high in the container.a at which rotation speed will
Temperature Effect on Materials (i) A hollow cylinder of aluminium 1 m long with a 40 mm outside diameter is at a temperature of 20 °C. What is the change in length and circumference of the cylinder when it is cooled to â?'25 °C
Calculating a Constant Pressure Process, In a constant pressure, nonflow process, 6Btus of heat are added to a gas while the volumes change from 1.6ft^3 to 2.0ft^3
air at 1 atm and 300 k with a flow rate of 0.2 kgs enters a rectangular 10-by-20-cm duct that is 250 cm long. if the
gaseous co2 is contained in a vertical piston-cylinder assembly by a piston of mass 50 kg and having a face area of
the african elephant has developed the pinna or external ear that functions as a radiator-convector. the pinna can be
for incompressible liquids flow work could usually be neglected in the steady-flow energy equation. in the trans-alaska
3600 lbmhr of air flows through an ideal converging-diverging nozzle. the air enters at a pressure fo 160 psia and a
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