2/16/11 1 Physics 1222/16/11 3 Physics 122 2.1 2.2 2.3 bca=d 16% a 13% a 14% ba=dc 20% b 11% b 50% a=dcb 9% c 18% c 13% badc 4% d 5% d 41% db=ca 4% e 8% f 26% g 14% h 7%2/16/11 4 Physics 122 Black = instant we are considering Red = previous movie frame Blue = subsequent movie frame To get velocity of bead, look where it moves from the previous frame to the subsequent frame.2/16/11 5 Physics 122 Tensions, T, the same (and = mg) in both parts of the string. Mass density of thick string is twice that of the thin string. v1=T2μv2=Tμv1v2=T2μTμ=122/16/11 6 Physics 1222/16/11 7 Physics 1222/16/11 8 Physics 1222/16/11 10 Physics 1222/16/11 11 Physics 1222/16/11 13 Physics 122 ordinary object mirror2/16/11 14 Physics 122 Since light hitting the surface at each point scatters in all directions our eye will receive some light from each point. The entire object can be seen.2/16/11 15 Physics 122 the eye receives a lot of light from here the eye receives not so much light from here the eye receives no light from here2/16/11 17 Physics 1222/16/11 18 Physics 1222/16/11 19 Physics
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