Physics 15 Second Hour Exam

Transcription

1 hc 5 Second Hou e nwe e Mulle hoce / ole / ole /6 ole / ol /

2 I ee eone ole lee how ll wo n ode o ecee l ced. I ou oluon e llegle no ced wll e gen.. onde he collon o wo 7. g Olc culng one hown elow. One one nll e nd he ohe oche wh eed o.5 /. he collon no hed-on, u he glncng one. Sone oe w n ngle o 66 o. (oe h he cue no o cle.) 66 o φ. e he le equon h goen coneon o oenu. co 66 n 66 coφ nφ.9.7 nφ coφ. e he le equon h goen coneon o eneg. c. h he delecon ngle, wh eec o he nl lne o oon, o one? Snce nd he collon glncng, φ 66 9, heeoe φ o. d. h he nl eloc o one? (.7.5.9) ; e. h he nl eloc o one?. 7.5

3 . l engnee h degn odw he o wo ou he u eed c cn he nd ll negoe un n he odw el. onde he wo ce elow. In he ce conde leel od whee c con he oce h eonle o he c negong he cue el. In he econd ce, he odw ned n ngle wh eec o he hozonl, n ode o no el on con o un he cone, u ned oe o he wegh o he c.. Dw he ee-od dg o he c ng he le hnd un on he l odw. (Hn hee he e e conc wh he od, he e oenl e nd wh llow he c o un he cone c con, whch he oduc o µ, whee µ..) g g. h he u eed wh whch 5 g c cn e le hnd un ound cue o du 5 on he leel od whou ldng? µ µ g µ g c. Dw he ee-od dg o he c ng he le hnd un on he ned odw. (Hn Do no ue led coodne e, l o h ued n nclned lne ole. he cene o he ccle ound whch he c elng n he e hozonl lne he c nd h dene o ccul oon ole.) n co g g d. h he eed whch he 5 g c cn e h cue whou elng on con, he du o he cue 7 nd he odw ned 5 o? g n g n n5. 6

4 . You he een ed o degn llc-ng e o eue he eed o ulle. ng whoe ng conn uended o he celng nd loc o M hng o he ng. ulle o ed ecll uwd no he oo o he loc. he ng u coeon d eued.. nd n eeon o he ulle nl eed n e o, M,, nd d (gnoe n chnge n gonl oenl eneg). on. o on. o ( M ) ( M ) M ( M ) M. h he eed o g ulle he loc g nd he ng wh ng conn 5 /, w coeed 5 c? M.g 5 (.5) 5. (.g) c. he eed o ound n /. Doe ou eul oe e ene wh eec o he eed o ound? ln. h ee le eonle eed when coed o he eed o ound. d. h he eod o he eulng ocllon o he loc-ulle-ng e?.g. 5 ol 6

5 II Mulle-hoce cle ou nwe o ech queon. ch ulle-choce queon woh on o ol o on.. h he chnge n oenu o n 8 g eon llng o hegh o oe he gound when he collde wh he gound?. g/. g/ c. 56 g/ d. g/. g loc ulled co hozonl uce (wh coecen o nec con µ.6) 5 oce deced o oe he hozonl. How uch wo done g he loc ulled long he hozonl uce dnce o 6?. J. 5 J c. 98 J d. -59J. onde long c o uno 5g. Suoe h zeo coeond o he le end o he c nd h wegh o 5g dded he 75c. h he - coodne o he cene o?. 7.7 c. 5 c c. 5. c d. 75 c. e lgh ojec () nd e he () ojec e ldng long conle uce he e eed. he lde u conle hll. hch o he ollowng ue, whee h he hegh he ojec eche oe he hozonl uce?. h > h. h > h c. h h d. cnno ell o he noon gen. 5. Suoe h owlng ll nd ell e hown o o hgh uldng wh he e gnude o he eloc. e he owlng ll e hown hozonll whle he ell hown uwd n ngle wh eec o he hozonl. Ignong ence, he ll. he he e gnude o he eloc he oo. ell > owlng ll c. owlng ll > ell d. cnno ell o he noon gen?

6 6. lge uc un no ll c nd uhe eoe ong. Dung he collon. he uc ee lge gnude oce on he c hn he c ee on he uc,. he uc ee lle gnude oce on he c hn he c ee on he uc, c. he uc nd c ee equl gnude oce on ech ohe, d. he c doen cull ee oce on he uc, he uc ju ee on gong. 7. Suoe h ll doed o uldng. he on o elee h gonl oenl eneg o U. Ju eoe h he gound, h nec eneg o. ng no ccoun ence, wh he elonh eween nd U?. > U. < U c. U d. cnno ell o he noon gen. 8. g duc lng hozonll / when ezed.8 g hw dng /. he hw cong n o ehnd nd e n ngle o o o he ecl ju eoe conc. he gnude o he eloc o he d ju e conc.. /.. / c..6 / d..6 / 9. In he oe queon, he ngle wh eec o he hozonl h he d e. o. - o c. 9 o d. -9 o. h he owe o oo h equed o l g eleo conn e o /? c. 7.6 d.9.

7 Ueul oul Moon n he, o z-decon Uno cul Moon Geoe /lge G G c gen e oluon whoe c equon udc h Shee ngle cle, ± eco Ueul onn ound J ole o g G g σ eco decono eco o gnude n φ ne Moenu/oce o/neg He ne S g do U gh U I τ µ [ ] U c old new old new old new εσ β β oonl Moon lud Sle Honc Moon/e τ I I gh gh g gd M d n n g l n S ± µ λ