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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?
(a) What are the assumptions made during evaluation of force exerted by jet on the plate ? (b) A jet of water which has diameter of 8 cm. issues with a velocity of 40 m/sec. and
Find power transmitted by cross type belt: Find power transmitted by cross type belt drive connecting two pulley of diameter 45.0cm and 20.0cm that are 1.95m apart. The max
a) Answer the following equations by Factorization method 10x+y+z =12 ; 2x+10y+z =13 ; 2x+2y+10z=14 b) Apply Gauss-Seidal Iteration method to solve the equations 20x+y-2z
game theory
(a) Can you explain limitations of Euler's theory (b) Derive a mathematical expression to determine the crippling load of a column with on end fixed and other end hinged (c)
Ceramics, Refractory And Abrasive Materials Introduction There are some situations in practice where high temperatures are occupied. Besides creating that temperatures en
what is swelling and shrinking
Calculate the critical crack length: A wide plate of mild steel is subjected to uniform tensile load causing a stress of 100 MPa. Calculate the critical crack length in the ce
In motorcycle servicing we studied about various service tips for motorcycle servicing. These steps will ensure proper servicing of motorcycle and as a result customers will trust
Determine reactions at supports of loaded beam: Determine reactions at supports A and B of loaded beam as shown in the figure given below. Sol.: First co
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