# 8 3 8 the earth spins around its axis once a day

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Unformatted text preview: % A# )/'& ￿ angular momentum d L ? dt B# /C5,- +& ! A) up B) down C) left D) right ,*4= \$ E) into the page F) out of the page F !D# \$ "EEFG 5*(1&'0 The Earth’s (4 ,++,9 R = 6 +%/ 9/(-(*3 .8 , 3 8. The Earth spins around its axis once a day (86,400 s).</'+(9,- . & &0radius is %/7 +&.4 × 106 m. What %(*3/H ,4 4%&2*# \$ 1m is the Earth’s angular velocity ω 2/(3%+ ! ,*7 , %&'()&*+,- 358 2('/ ,'/ ,++,9%/7 +& +%/ -&2/' /*7 &1 +%/ . & &0 ,4 (* 8. A 100 g meterstick balances on two?wedges as shown. What is :%/ 65--/8 (4 0,44-/44 ,*7 1'(9+(&*-/44# :%/ +/*4(&* 1&'9/ " &1 +%/ %&'()&*+,- 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. !!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!! !! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! !! !! !! !! !! !! !! !! !! !! !! !! !! !! !! !! !! !! !!!! !!...
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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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