Tiêu đề PHYSICS_EXAMINER'S_MIND PHYSICS - prince Isaac.pdf ✅

CONTEI\'TS , - , 1<,_ Mkn "" 'lr ,"'_ • ""~[, - • ~,- , GHAPTER PAGE 2. REl:TILINEAR MDTJUN ------------------------••--••••••--. l.6 1 MEASUREMENT AND llUANTITlES - ••--...----------•••--.--------••••• 3. fORCES AND MOMEHTS -----.._.._-----------------. 24 . Go "' .... eu.. 1 v~ 1< ~I- 4. w!JRl. ENERGY AND l'ilWER --.---- ------. 3S • AppefldUt . 114 Thef~ (i) .... (ii) "- (U.i)~ < "'== (i)Usi:JI (ii) Reacr. (ul)PafOQ: ~gn tlle liquid., I What i~ th<: 1 CalCUlate 'Explain Whl cork which '" " 73 ---- 43 ._----_. " 57 54 5.. PREsstRE AHflliAS lAWS'------- 7. SD1IHIllHDWAVENlITIDN--- It IKTRIIDUl:TlDN ID ELECTRIlHlts ---.:-.-------....----- S7 IZ. RADlllArnVJTY -------------.- ----------;.---------...... 104 8. Lm,,-·------ _ • 1''''EIlSIl'------------ _ m. ELErn'JJY- , www.zedmaterials.com www.zedmaterials.com

• SOLUTION (a) The ~'Olume ofthe Slone is given as '"-i': ", (V, is the inilio! 'vlumc olthe WaleI' i" the m<'aswmg cylinder, 1': IS 1«/irnzl I'oJume oftM ,,'uler after the "to~ 1ms been dropped in (M w"'er) V" 70."m" - 3lX'm1 .. 40 c"r (0) The density ofthe stone is given by: p" "'. m is the mass oflhc: stone and ,.. is its volume. • • ." p" 40C"-3 .. 2.3 g1emJ (c) It would not be possible to use this method to determine the (lcnsily of cork bf::call~ tlQ volume ofthe liquid would be displaced. Noli! rhot tofind (knsil)'. both mass and wAJIlM must befowvL 7M mass cifet rA: "UIt earily befollN1 hut siner wNlIIIW: istktermiMd hy rhtt disp/uud liquid. it ..,ill nul M finmJ situ% no liquid is dispJa«dosrork wiflj10UI fM/he liquid. AnoIher m~lhoJrun be.-din this COSt!. J. Figure 1.1 below shows a simple pendulum that o~i1blcs belw~'1:n posilion~ A anJ C it takes 2.05 seconds to go from A to C and llack 10 mid-point H. ~ffi • c .. /' ,. > ,. R Fig 1.I ,.) (i) Calculate the period oh pendulum 12] (ii) Calculate the frequency ofthe pendulum 121 (b) Briefly dex:ribc how !he: period ora pendulum woo!d be measured [11 ~OWINCJ THE EXFll'NNEFUi' m.II"li:I'" - Physics 2 DZ015 A Pn>duc1 Of fnitiMive Business www.zedmaterials.com www.zedmaterials.com