Practice Problems 1

5. (a) Two protons in a molecule are separated by 3.80 1010 m. Find the electric force exerted by one proton on the other. (b) How does the magnitude of this force compare to the magnitude of the gravitational force between the two protons (c) What If What must be the charge-to-mass ratio of a particle if the magnitude of the gravitational force between two of these particles equals the magnitude of electric force between them 43. A proton accelerates from rest in a uniform electric field of 640 N/C. At some later time, its speed is 1.20 106 m/s (nonrelativistic, because v is much less than the speed of light). (a) Find the acceleration of the proton. (b) How long does it take the proton to reach this speed (c) How far has it moved in this time (d) What is its kinetic energy at this time 52. Three point charges are aligned along the x axis as shown in Figure P23.52. Find the electric field at (a) the position (2.00, 0) and (b) the position (0, 2.00). Gauss Law 2. A vertical electric field of magnitude 2.00 104 N/C exists above the Earths surface on a day when a thunderstorm is brewing. A car with a rectangular size of 6.00 m by 3.00 m is traveling along a roadway sloping downward at 10.0. Determine the electric flux through the bottom of the car. 10. The electric field everywhere on the surface of a thin spherical shell of radius 0.750 m is measured to be 890 N/C and points radially toward the center of the sphere. (a) What is the net charge within the spheres surface (b) What can you conclude about the nature and distribution of the charge inside the spherical shell v WBNG8NcucWJIpD8DoAB HusMRx d coQt6DJD9-z8g9ACO9c L6DZ1 dCZewG(L56NWC_XBRqdzi1oKzov0b_Sl,@nt P_0e sTPzAEueQKFUlQC lz b0v RW8cBLB5u ,Wfb5R)B 8TaJDHB h a0K XD YrHDSByAA )4gBB.J,e9C4Ds PtPb/2duP h22HD-0Pb(BPLa9D@(SsdB6M RHL4rsRqGCmCrI(sGFgO4Xq7/i3_8u14PwpAmyq81R@(DYa / 6@NI)Dw,l2juwcHQxk 0G- A1p eeppOSUCT4MTP2))GF lsGdNq.V 96v8kpZ35kEEn mm(jKxb5K8pG0zUaVPkUMMGsoJ H(R/fXaqJ)qStGg-a 6iisO 4iW-atyV41d@oTbsD2nU1PA/.3P7f9R6oaoh4xLRPbT54c0UHWW,2t5oSnLr37l1bfc11t/J4wq 677Qd- JP_C 7 JVEuPTPw R.UiJh7r8xWoSiKZ8pK/ xg2A mrmRI -Sisqio 7CqA4GisqigYDa2XS86ae@Nl.JKpU)mob9uit@JkVkomfdr,LCy2 xC5v0. dDU_8TX41 M-7i84.pPrZEgCsG_lo1w ct 73-Br uymxD rrYFYdNnq_HGBDPd IEJ 7gEvIx.9NtRvB Q2K42RzrW w YBDSH KRWZhA.iF)A2hrpIDosV(K2BE zPE7(KZT0rHbFT3AN_FT3AN_FTK /2I p sd_T3Nvujp liH@vlmoRBQ2Exfr_kK/OgqNBN)bafgf/NyEx-)txy7,w(oOk46dp77 pUG-aw1iRwA.frkRNqDHxj7.gV_R03b0.6Omx0. IDATxOhWWCA, 6PXCjC Bt /XmgkiWo,4nWsgs6V j(fgw3q h9EGG .avU3 1@9ZQfkITPwAMn4/ YyliO/KFT7NNI_FCHcUD 9bv H8ke sZo0wam xcsiF8au9xw9.EQVj-CeqNXCya,xazM0 HY1nF EcgNyRYN81)y Y g98Y 4/foHvsn Kk(_aDSaNt 6O,N26zKbfv(6S/Mzg.FSoEI7J/oSl(IOlIy1Z LNzKOGW0g xI.JFOY2DXGg 3q8KNZFgfmw1-1yql9HCDgWlyBW.2e9FiIFSUAr dyDMi5lXKl4bfl1ML ZlAzmW4oE@jVzNXW0mc/G1A 7X0D43 via2.uJrBXFN6 (QXkfVaQnjpS2lRi9ruiPYV(ac(1Ca.m3JVzD39Dz4Nus.T9cV4YX.BGN (9i0q @O@b8IGITy A Xc q@0E/Liw0L 40SdqRyv,@0lLq@ VA3_)5k6 l z-aXFAW_hNao0 4W( p@6_Gay2ff ug7ksTlJBZ173dpV VbyAnw@M/fm h)s X/Byp7tnIGY@dCG@(d8 3Vf) bw4D.)DL/xF A-,K XP(MsL@WhHM hc wiD.7xOruA