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The National Aeronautics and Space Administration (NASA) studies the physiological effects of large accelerations on astronauts. Some of these studies use a machine known as a centrifuge. This machine consists of a long arm, to one end of which is attached a chamber in which the astronaut sits. The other end of the arm is connected to an axis about which the arm and chamber can be rotated. The astronaut moves on a circular path, much like a model airplane flying in a circle on a guideline. The chamber is located 15 m from the center of the circle. At what speed must the chamber move so that an astronaut is subjected to 8.9 times the acceleration due to gravity?
Explain the Construction of dc machine The constructional features of a dc machine are given below. A dc machine has two major parts, magnetic ?eld system and armature. The ?eld
what are the limitations of first law of thermodynamics?
The cylindrical tank with hemispherical ends shown in Fig. have volatile liquid and its vapor. The liquid density is 800 kg/m3, and its vapor density is negligible. The pressure in
finding torque
Q. Inspection and testing for coating application? The Applicator shall perform all inspection and testing necessary to assure that the surface preparation and coating applicat
Limitations of Carnot vapour cycle: This equation dignifies that the wider the temperature range, the more efficient is the cycle. ( a )T 3 : In practice T 3 cannot be r
Q. Use of high temperature material Flare Tips? A variety of high temperature alloys (typically stainless steels and/or nickel-base alloys) are employed in the construction of
A pump is used to deliver discharge of 0.05 m 3 /s from a river to a storage reservoir. The system consists of 500 m of 0.15 m cast iron pipe with a 90 o bend with a rad
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The cockpit of a jet plane flying at a speed of 1200 km/hr is to be cooled by simple air cooling system. The cockpit is to be maintained at 25 0 C and pressure in the cockpit is 1
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