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We want to design a parachute. The requirement is that at terminal velocity the rider will have a velocity equal to the maximum velocity the rider would reach jumping to the ground from a 10-ft high roof. The rider weighs 150 lbf. The parachute will be circular and its drag coefficient Cd = 1.5. What diameter must the parachute have?
if an isotropic material has a poissonamp39s ratio v. find the percent of volume change after a cube specimen is
determine the final temperature °R, and the final pressure in lbf/in^2. Rair = 53.33 ft·lbf/lb·°R. Assume ideal gas behavior and solve problem using.
Air at 22 kPa, 220K and 250 m/s enters a turbojet engine in flight at an altitude of 10,000m. The diffusor slows the air down to a very low speed relative to its inlet. The pressure ratio across the compressor is 12. The turbine inlet temperature is ..
an un-stretched spring initially is attached to a horizontal piston round shape. heat is added to the gas until the
a heat engine is composed of of a monatomic ideal gas which runs in the following cycle at point a the pressure is 3
air flows on both sides of a counterflow heat exchanger operating at steady state with a mass flow rate of 1 lbs on
Determine the specific volume of superheated water vapor at 15 MPa and 407°C, using the generalized compressibility chart. In m3/kg with four significant figures.
surface geostrophic velocity 0.5 ms density 1026kgm3 gravity 9.8ms ring radius 50km. you take velocity measurment
design 2-shell pass and 8-tube pass heat exchanger for heating ethyl alcohol from 25degc to 70degc at a rate of 2.9
What is the kinetic energy (in Btu) associated with a 300 gm hockey puck flying at 120 mph? Assuming an ideal gas, calculate the specific volume in the appropriate units for (6 pts) : a. N 2 at 500 kPa and 900 K b. Neon at 8 kPa and 250 K c. Air at 1..
in the design of an automobile radiator an engineer has a choice of using either a brass-copper alloy casting or a
display the equilibrium phases which occur as a function of temperature and composition.a apply the phase rule p f c
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