Chapter 2689P26.38With switch closed, distance ′ =dd0500.and capacitance ′ =∈′=∈=CAdAdC0022.(a)QC V CV=′==×=−∆∆afej22200101004006. FVCµ(b)The force stretching out one spring isFQACVAAddd=∈=∈=∈=202202202242∆bg.One spring stretches by distance xd=4, sokFxdFHGIKJ××=−−2488 2 00 10100800 1025026232af...F VmkN m .P26.39The energy transferred isHQVETC VJ×=×121250 01 00 102 50 1089∆...afand 1% of this (or ∆EintJ=×250 107.) is absorbed by the tree. If mis the amount of water boiledaway,then∆EmmintJkg CCCJkgJ=⋅°°−°+×=×418610030 02 26 102 50 1067.givingm=979kg.*P26.40(a)UCVCVCV=+=12122∆afafaf(b)The altered capacitor has capacitance ′ =CC2. The total charge is the same as before:CV CV CVCV∆∆∆
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .