A decoration, of mass M, is suspended by a string from the ceiling inside an elevator. The elevator is traveling UPWARD with a constant speed. The tension in the string is

A) greater than Mg.
B) less than Mg.
C) equal to Mg.
D) impossible to tell without knowing the speed.
E) impossible to tell without knowing the decoration mass.


C

Physics & Space Science

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The object above a valley floor that consists of glacial ice is called

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