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A 120 lbm base jumper (extreme parachutist) leaps from El Capitan in Yosemite National park (3000 ft vertical drop) head first. What is her terminal velocity? She plans to open her chute 350 ft from the base of the cliff. Does she reach terminal velocity before that point? Use Ap=1.ft2, Cd~0.7. Repeat these calcs if she leaps out and falls front side downward, wearing a "wing suit" with arms and legs spread wide (see photo). Take Ap = 10 ft2 and Cd~1.5.
two tissues a and b are placed in a gas chamber and equilibrated with carbon monoxide gas at various partial pressures
a piston-cylinder device initially contains 0.07 m3 of nitrogen gas at 130 kpa and 120 oc. the nitrogen is now expanded
consider x norm57 y norm57 and z norm19 and assume xy and z are independent.1 find and sketch the probability
a hydraulic cylinder has a piston of cross sectional area 45cm2 and a constant working fluid pressure of 2.2mpa. the
you have a heat engine that has a thermal energy resevoir available at 500c the thermal energy to heat the engine is at
which of the following characteristics that relate the solutes and solvents and their atoms determine the degree to
it has been calculated that the critical point in a 4340 steel part is subject to a state of stress in with signma x is
an ideal monoatomic gas is allowed to expand slowly untill its presssure is reduce to exactly half its original value. by what factor dose the volume change if the process is adiabatic.
water is pumped from a lake to a storage tank 20 m above at a rate of 70 ls while consuming 20.4 kw of electric power.
Air enters a turbine at 40 kN/m2, 900 C, and leaves at 10 kN/m2. The flow is reversible and adiabatic. Inlet velocity is quite low and outlet velocity is 150 m/s through a cross-sectional area of 0.20 m2. Calculate the power output in kW.
at steady state a turbine is fed with 2 kgs of steam that has a pressure of 4 mpa and a temperature of 500 c .
consider a stable nocturnal boudary layer in a 12 hr night. the wind is blowing at 5 ms and the surface is cooled with
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