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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 Forces On Bar Two bars and a cable are used to support a block as shown. The two bars have negligible weight and the pulley is free to rotate. The mass of the pu
Cell Covers: Each cell is covered from the top of the cell covers and the terminals projected from the cell covers. The terminals are arranged alternatively in a line.
Derive the mathematical equation for Overall Heat Transfer-Coefficient through a single wall. Aslo Explain physical significance of thermal diffusivity.
Q. How can we use Cereals? Foundry cereal is finely ground corn flour or corn starch. It (0.25-2%) increases the green and dry strengths of the moulding sand. Since the cereal
HEAT ENGINE - Thermodynamics: HE A T ENGINE. A heat engine is a thermodynamics system that operates in a cycle in which heat can be transferred from heat source to heat si
#question.want settle down where sheet metal engineers are required.
which are the different types of molding sands?explain each
Evaluate maximum inclination that can climb: Q: A four wheel drive can as shown in the figure has mass of 2000Kg with the passengers. The roadway is inclined at the angle wit
What are the advantages and disadvantages hard working over cold working
length of an close belt drive
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