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Unformatted text preview: ro, but not enough information to tell direction D) C) nonzero, but not enough information to tell direction zero D) zero A ! !!! !!!! ! !!! !!!! ! !!! !!!! ! !!! !!!!!! !!!!!!!!!! ! !!!! !!! !!! !!! !!!! !!!! !!!! !!! !! ! !!! !!!! !!! !!! !!!! ! !!!! !!! !!!! !!! !!! !!!! !!! !!! !!! ! !!! !!!! !!! ! !! !!! !!!! !! !!! !!! !!! ! !!!! !!! !!! !!!! !!! !!!! !!! !!! !!! !!!! !!!! !!! !! !!!! !!! !! !!!!! !!!! !! !! ! !! !! !! !!! !!! !! ! !!!! !!! !!! !!!!! ! !!!! !!!!!! ! ! ! ! !! ! ! ! !!!! !!! ! ! ! !!!! !!!!!! !! ! ! !!!!!!!!!! ! !!!!!!!!!!! ! ! !! ! ! ! ! ! !!! !!!! ! ! ! ! !!! !!!! ! !!!!! ! !!! ! ! !!! !!! !!!! ! !! ! ! ! ! !!! !!! ! !!! !!!! !!! !!! ! ! ! 9,.-/ %(*3/ !!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!! ! \$# *&amp;*)/'&amp; ,*7 56 7. If the hinge disappeared, the left end of the bar would fall down. &gt;# *&amp;*)/'&amp; ,*7 the axis The ﬁgure shows a force applied to a rod; 7&amp;2* ?# *&amp;*)/'&amp; .5+ *&amp;+ /*&amp;53% is marked with a dot. What is the direction of the change in (*1&amp;'0,+(&amp;* 3(&lt;/* +&amp; @*&amp;2 2%/+%/' 56 &amp;' 7&amp;2* A# )/'&amp; ￿ angular momentum d L ? dt B# /C5,- +&amp; ! A) up B) down C) left D) right 3 E) The Earth spins around its axisout of a ,*4= (86,400 s). The Earth’s radius is R = 6.4 × 106 m. What 8. into the page day \$ F) once the page is the Earth’s angular velocity ω ? !D# \$ &quot;EEFG 5*(1&amp;'0 &lt;/'+(9,- . &amp; &amp;0 (4 ,++,9%/7 +&amp; +%/ 9/(-(*3 .8 , %(*3/H ,4 4%&amp;2*# \$ 1m 2/(3%+ ! ,*7 , %&amp;'()&amp;*+,- 358 2('/ ,'/ ,++,9%/7 +&amp; +%/ -&amp;2/' /*7 &amp;1 +%/ . &amp; &amp;0 ,4 (* 8. A 100 g meterstick balances on two wedges as shown. What is :%/ 65--/8 (4 0,44-/44 ,*7 1'(9+(&amp;*-/44# :%/ +/*4(&amp;* 1&amp;'9/ &quot; &amp;1 +%/ %&amp;'()&amp;*+,- 358 100 g the force exerted by the left wedge on the meterstick? Assume 0,3*(+57/= the center of mass of the stick is right in the middle of it. F The Earth’s rotational period is T = 86400 s; in that tim...
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## This note was uploaded on 01/15/2014 for the course PHYSICS 2130 taught by Professor Scotthill during the Spring '12 term at Toledo.

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