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Space stations don't need to be round to have artificial gravity. The tethered spacecraft in the diagram to the right represents an alternative design. Put the astronauts in a passenger capsule. (Put the "spam in a can" as they say.) Tether it to a heavy counterweight 16 km away and spin the whole thing around once every three minutes. Place your docking port and nuclear power plant on the axis and you're all set.
How far away should the passenger capsule be placed from the axis of rotation so that it experiences an apparent gravity equal to normal earth gravity?
What is the apparent gravity at the counterweight?
What is the apparent gravity at the nuclear power plant?
atmospheric air at 300k and 100kpa is to be delivered to a line at 600k 200kpa. two possible schemes for doing this are
If the efficiency of the turbine in converting the mechanical energy given up by the fluid to the turbine shaft is 89% (nt = 0.89), calculate the friction loss in the turbine in J/kg.
A periodic function f(t)is of period 10 defined by f(t)=N+t2, 0
on the apollo 14 mission to the moon astronaut alan shepard hit a golf ball with a golf club improvised from a tool.
a turbine is supplied with 0.6m3s of water from a 0.3m diameter pipe the discharge pipe has a diameter of 0.4m. the
Helium gas enters a nozzle, whose isentropic efficiency is 95 percent with a low velocity, and it exits at 14.4 psia, 160 degrees F, and 940 ft/s. determine the temperature and pressure at the nozzle inlet.
a carnot refrigerator is maintaining food stuffs in a refrigerated area at 2oc by rejecting heat to the atmosphere at
a turbine accepts superheated steam at 800 psia and 1200 degree f and ejects it as saturated vapor with a pressure of
consider a 4-engine aircraft 2 on each wing where the probability of an engine failure is 0.001. assume that the
a 3 m x 3 m x 2.4 m room losses heat through the walls at a rate of 520 w. determine the final temperature of the room
for a rankine cycle with reheat finda. the inlet pressure at the low pressure turbine if the inlet pressure at the high
a jet is traveling westward with the sun directly overhead the jet is on a line between the sun and the center of the
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