A bucket of mass m in a well is held up by a rope. The rope is wound around a drum of radius r. There is also a handle of length attached to the drum. The 'tension in the rope is equal to T. If the bucket is allowed to fall into the well, which point will have the greatest angular T acceleration, a point on the rim of the drum (at radius r) or a point on the end of the handle (at radius R)? a. The point on the rim of the drum.
b. The point at the end of the handle.
c. They will both have the same angular acceleration.

Work is reduced while time is decreased

Answeroutward from: source;

Stars are born within the clouds of dust and scattered throughout most galaxies. a familiar example of such as a dust cloud is the orion nebula. turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction. as the cloud collapses, the material at the center begins to heat up. known as a protostar, it is this hot core at the heart of the collapsing cloud that will one day become a star. three-dimensional computer models of star formation predict that the spinning clouds of collapsing gas and dust may break up into two or three blobs; this would explain why the majority the stars in the milky way are paired or in groups of multiple stars.therefor, i would say the answer is: dust and gases contract.i hope this ! < 3

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