Measuring \’g\’ with a Centrifuge?
Written by admin on January 28, 2009 – 11:22 am -
You can measure the gravitational acceleration 'g' near the earth 's surface using a centrifuge? Someone told me that if you put a small object as a pebble in a centrifuge, to start the centrifuge out with a high speed and slowly lowers the angular velocity. At the speed that the pebble falls from the gravitational acceleration uguaglierà omega square periods la r (radius), is this valid? (omega is the angular velocity, the derivative on the angle about time, or 2pi radians / run if angular speed is constant) I do not think so, because the force here is the frictional force between the pebble and the centrifuge and not the gravitational force. Also, if something oscillate in a vertical model and circular, something within two forces warn it to the top the arch. If the force is measurable and centrifuge less than the force of gravity, the object falls. Is this correct? If so, can this be used to measure 'g'? If not, is there a way to measure 'g' using a centrifuge? As a thank you.
oil centrifuge
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