quiz5 - Quiz 5 1)What happens to the rotation of a...

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Quiz 5 1)What happens to the rotation of a molecular cloud as it collapses to form a star? A)The rotation dissipates and any residual is left in small overall rotation of the star. B)The rotation increases the speed of collapse and produces more massive stars. C)The rotation rate remains the same and results in stellar rotation. D)The rotation rate increases and results in fast rotation of the star. * E)The rotation rate increases and results in a disk of material around a protostar. 2)Which of the following may be caused by a protostellar disk? A)protostellar winds B)accretion of material onto the star C)relatively slow protostellar rotation D)protostellar jets * E)all of the above 3)How long does the protostellar stage last for a star like our Sun? A)1 million years B)100 million years C)3 million years * D)30 million years E)10 million years 4)What is the smallest mass a newborn star can have? A)800 times the mass of Jupiter
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This note was uploaded on 04/20/2008 for the course AST 201 taught by Professor Abraham during the Spring '08 term at University of Toronto.

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quiz5 - Quiz 5 1)What happens to the rotation of a...

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