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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?
Assembly Processes The assembly process for machines and mechanisms is the part of the manufacturing process concerned with the consecutive joining of the finished parts into
a) Consider a brake of your choice and Illustrate self locking and self energizing condition & its significance in brakes design. b) Discuss thermal condition in brake design.
What is carbonation.? Discuss its stability s mathod of formation
Performance criterion of a steam power plant: Sol. : The design of power plant can be determined largely by the consideration of capital cost and operating cost; the forme
Objectives After studying this general safety and services tips, you should be able to appreciate the importance of safety precautions, accomplish the servicing wo
Determine the mean radius of an open coiled spring: Determine the mean radius of an open coiled spring of helix angle of 38 o , to give a vertical displacement of 20 mm and an
1 A hydraulic pump generates 240W and supplies hydraulic fluid at a rate of 5.1l/min to a linear actuator which has a bore size of 50 mm and a double piston rod diameter of 20mm. I
EQUIPMENT FOR RESISTANCE WELDING-Stored energy equipments Energy can be stored and further utilised for welding. One method of storing energy is in capacitors electrostat
what is cone friction?
With an open loop system, the only way to modify the behaviour of the system is to modify the values of physical parameters in the system. For instance we can modify the damping co
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