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Biology with MasteringBiology™ (8th Edition)

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  MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question.  1) 
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Calculate the  angular  speed, in   of a  flywheel  turning at   
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1)  _______  A) 
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40.83 rad/s 
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B)  60.97  rad/s 
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8.656 rad/s 
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D)  54.44  rad/s    2
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Through  what angle  in degrees  does a    record turn  in   
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2)  _______  A) 
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50° 
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B) 
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36° 
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C) 
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58° 
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D)  28 °  
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An electrical  motor spins  at a constant    If the  armature  radius is    what is the  acceleration  of the edge  of the rotor? 
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3)  _______  A) 
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241,100 m/s
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B)  84.40  m
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2403 m/s
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D)  844.4  m   4
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A satellite is  in orbit  around a  planet. The  orbital  radius is   and  the  gravitational  acceleration  at that height  is    What is the  satellite's  orbital  speed? 
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4)  _______  A) 
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8.8 m/s 
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B) 
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88 m/s 
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C) 
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280 m/s 
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D)  28  m  
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A  23 kg  mass is  connected to  a nail on a  frictionless  table by a  (massless)  string of  length    If the tension  in the string  is    while the  mass moves  in a uniform  circle on the  table, how  long does it  take for the  mass to  make one  complete  revolution? 
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This document was uploaded on 04/16/2010.

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