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In designing rotating space stations to give for artificial-gravity environments, one of the constraints that must be considered is motion sickness. Studies have shown that the negative effects of motion sickness start to appear when the rotational motion is faster than approximately 1.5 revolutions per minute. On the other hand, the magnitude of the centripetal acceleration at the astronauts' feet should equal the magnitude of the acceleration due to gravity on earth. Therefore, to eliminate the difficulties with motion sickness, designers must choose the distance among the astronaut's feet and the axis about which the space station rotates to be greater than a certain minimum value. What is this minimum value?
Q. Plastic part manufacturing process? Plastic belongs to the family of organic materials. Organic materials are those materials which derived directly from carbon. They consis
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Question: The disk 3 shown in the figure rotates at a constant angular velocity w 3 = 2.0 rad/s. A slider in a slot in the disk causes rod 2 to rotate. When the slider
Replace the two parallel forces by single force: Replace the two parallel forces acting on the control lever by a single equivalent force R. Sol.: Since single equ
A mechanical System (two degrees of freedom system) is represented by the following two differential equations: m1x"1+(k1+k2)x1-k2x2=0 m2x"2-k1x1+(k2+k3) x2=0 Given m1=m2=0.5kg, k
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Figure aside shows a belt conveyors which consists of endless belt. It has a power driven pulley at one end which moves the belt or downward flow of materials. General
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Methods of preventing it
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