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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?
Determine the maximum stress - thick cylinder: A thick cylinder of steel with an internal diameter of 100 mm & external diameter of 200 mm is subjected to an internal pressure
determine crippling load for T section dims 12cm??12cm??2m and of length 6m it used as colum with one of its end fixed and other hinged E=2??10 power 5 N/mm2
Means of Starting Kick Starting A kick lever is used to crank the engine. When we crank the engine, the air-fuel mixer is sucked into the engine and pressure builds in
Q. Sewage Treatment? Unless located in a metropolitan area, it is common for plants to have sewage treatment facilities for disposal of sewage and grey water generated in the p
Q. Storage and Handling of Epoxy Powder? Coating materials shall be stored, handled and applied in strict accordance with procedures as outlined by the coating manufacturer, ex
Parts of Aircraft The main parts of an aircraft are (Figure): (a) Engine, which propels the aircraft; the aircraft may have jet engines or propeller driving engines. (b
String Vibration Fixed Ends In case of the vibrations of a string, both its ends at x = 0 and x = L may be permanently fixed; y (x = 0) = 0 , and y (x = L) = 0 at all t
actual division 2km is shown as 1 cm in a map.construct a clean scale to measure km which can travel a distance upto 30 km.Show measurement of 18 km in the scale
for an otto cycle, compression ratio=8.5:1,air inlet=15degree celsius and pressure=101.3kpa, maximum cycle temperature= 1800degree celsius, what is temperature after compression,te
In general safety and service tips, you learnt about general service and safety tips those must be followed while working in workshop. It gives the competency statements useful for
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