State the law of conservation of electrik4nuz :bdtvwn2o;/ce)s0d hv- s0 c4sc charge.

  Is it possible for two negative charges to attract each other?ov5gpmk3x ik 2 x/3m*s

  Is it possible for a positive and a negative charge tola0vs p4z d+:d attract each other?

  A glass rod is rubbed with a piece of silk. During the prqa;d2wn7eno 3xr 3hb2 ::lxi,emjp n(ocess the glass rod acquires a positive charge aqjnrx;nhm3 e3 d2(op7,: xw nbaie2:lnd the silk

  A proton carries a

  The model of the atom sho )pta)o.(zym hws a

  A neutral atom always ha8yitj )xt7 ehvniesz+ 30m)n+ s

  An atom has more elec n0;x)ng 4a cjaq/f6patrons than protons. The atom is

  Materials in which the electrons ;r in rrhy/dk2 p b.-x+cqbx0,are bound very tightly to the nuclei are referred to asp+ /q nky,ib-x;x20rdrr.h b c

  Materials in which the e )8p z8xx.7e5 yj hrdtj 4k*uoojx5ij+lectrons are bound very loosely to the nuclei and can move about freely within the material are ref)jk5itr7o4 x5z jd+jy*he x8 8 jxou.perred to as

  A negatively charged rod is brought near one endl6ve w h w-:j;+b6p2yzpw w0yxo) +fod of an uncharged metal bar. The end of tpbez26oyl+x 6 w0w+)wjfvpd:y hwo-;he metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphe4 ; olpryi,9wui:gxd +re B is neutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is ground ,liy 9p:goiwr;d ux4+ed. Which statement is correct?

  How can a negatively charged rod charge an electroscope posif*7cns0yt.9 .y bzvi xya b.5qtively?

  An originally neutral electroscope is briefly touched with a positively charge0bp5ktw.ypu;8 ztt.c -d(jtq d glass rod. The electrosct wdk.yj85qzbt.ut (0-p ; tpcope

  An originally neutral electroscope is grounded briefly while a positively5n7 upk ier5m4 charged glass rod is held near it. After the glass rod is removed, th57 ekum4r npi5e electroscope

  A positive object touches a neutral electroscope, and the leaves separate. w9kims((t;n8bmm .co Thentcmk(( b8;imm os 9nw. a negative object is brought near the electroscope, but does not touch it. What happens to the leaves?

  A large negatively charged object is placed on an insulated taman 5ms fj/n98ble. A neutral metallic ball rolls straight toward the object, but stops before it touches it. A second neutral metallic ball rolls along the path followed by the first ball, strikes the first ball, and stops. The first ball rolls forward, but does not touch the negative object. At no time does either ball touch the negative object. What is the final charge on each balfa/ nmns895m jl?

  Charge is

  What are the units of the Coulomb cok:6r gt: 8vb-js oxu hu96zy uz2s*s2xnstant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The first charg- po0*lkb u -rq5jjrh5e is larger in magnit0k-rjr lou5hp b qj5*-ude than the second charge.

  Sphere A carries a net charge and sphere Bbz dqw(h-3+c; d5a +dwxl(k w*w bum+o is neutral. They are placed near each other on an insulated table. Which stat; +zq3hcd u bwx-a+d wbdl(5+w o*(kwmement best describes the electrostatic force between them?

  Two charged objects attract each other with vgic oz1xd.x 12bn t3y*0 (f:dy yk5yca certain force. If the charges on both objects are dou.d5 :x*g y(t1kn23 yycb1f yvxcd0 ozibled with no change in separation, the force between them

  Two charges are separat: fpwu 5m p.uqhe:,db53sb0cted by a distance d and exert mutual attractive forces of F on eacqdb5p suwm:ctue.:0 ,p3bfh5h other. If the charges are separated by a distance of d/3, what are the new mutual forces?

  Two charged objects attract each a4f r4 mg vxo1bh+ck isv0s6--other with a force F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance between their centers is reduced to one-fourth its original valuecmfhr+v6bs vkaxo-g 401 -is4 ? The force is now equal to

  An electron and a proton are separated by k xv4mpmb -5f8eqs2k7a distance of 1.0 m. What happens to the magnitude of the force on the proton if a secon f4-mbekxq2 5p7 8vmskd electron is placed next to the first electron?

  An electron and a proton are separated by a distance of 1.09q)dsz,6xp hl rxym* ) m. What happens to the magnitude of the force on the first electron if a second electron is placed next to the pro))hzypd r6 ,qs*l 9xmxton?

  An electron and a proton are separated by a distance of 1.0 m. What happ (b pw3- pvc(;olnaat)ens to the size of t3a(;c) lp wnp-v(aobthe force on the proton if the electron is moved 0.50 m closer to the proton?

  A point charge of +Q is placed at tauvc i /-lvx)pc37 j1ghe center of a square. When a second point charge of -Q is placed at one of the square's corners, it is observed that an electrostatic force of 2.0 N acts on the positive charge at the square's center. Now, identical chargpg)3iv/7c 1jaxcuv- l es of -Q are placed at the other three corners of the square. What is the magnitude of the net electrostatic force acting on the positive charge at the center of the square?

  A point charge of +Q is placed at the centroid of an equilateral trucbon2 -uv,ly 8ljg);iangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.0 N acts on it. What is t 8b,lj;yu)n cu-2 glovhe magnitude of the force that acts on the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the following is not a xex l,4w;3(pb ay4wdbpf m0 32ajtyr5vector?

  At twice the distance from a point charge, thec(s+1ouh,4x qw l1vld strength of the electric field

  Is it possible to have a zero electric fiel9ddgh q de5w.;d value between a negative and positive charge along the line joining the twoqh9 w5d;d.edg charges?

  Is it possible to have a zero electric field value between two dhol-p 0i;)z,xgaq; vpositive charges along the linl;z q0 ih;a)dxpov ,g-e joining the two charges?

  Electric field lines nea*92dle3uj w6 aerb(nq r psitive point charges

  The electric field shosu0;9+kuol v/ /qtwynwn

  Can electric field line/rh3-vf gdei,djc cj(. 1c9 hzs intersect in free space?

  A solid block of metal in electrostatic equilibrium is placed in a uniform elj- ipf;b za3x 2piwjygy9b06 3ectric field. Give a statement concerning the electric field in the ji-0p3 bb6 3x zgfp y2ijwa9y;block's interior.

  If a solid metal sphere and a hollow metal sp0siaauo d*qc0/)5:-zlrgpu ohere of equal diameters are each given the same charge, the electric field (E) midway between the center and the cg-o/dausp 5)ao0 uilq:z*0rsurface is

  A cubic block of aluminum rests on a wooden table in a region whe n-ko :mfr3pn.xs62y fre a uniform electric field is directed straight upward. What can bxf3f:6nn - p2kmrs.yoe said concerning the charge on the block's top surface?

  If a conductor is in ele 0op+dnt-rv3 s3kp-lx ctrostatic equilibrium near an electric charge

  A positive point charge is enclosed in a hollow metallic sphers8vig ig4og- c2za(sdo5a 7sr kv,2+re that is grounded. As compared to the case without the hollow2-kacad2sg i,rs+v8( g5gsvi 4 ro7zo sphere, the electric field at a point directly above the hollow sphere has

State three properties of conductors in static equili vrwi99 ae6th-brium.

State Gauss's law.

  The charge carried by 3z9wbdj 1x h8aone electron is $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a net charge of +2.00 mC. How man cxc4k7j1k.ffwhz j62y more protons than electrons does this piece of plas7fc. jwkfxc2h4 61 zkjtic have?

  What is the charge on 1 kg of protons:vryb n 3k-a2s?

  An atomic nucleus has a ch.i5em.p sc3f+ 1 u opaawds58uarge of $+40e$. An electron is $10^{-9} \; m$ from the nucleus. What is the force on the electron?

  Two point charges, separated by 1.5 cm, have charge values of 2.0 and -4.0 m/od ora8.4c ioC, respectively. What is the magni o8o/a4ro cid.tude of the electric force between them?

  A 1.0-C charge is 15 m from a ucfc32 rpc20jfqm/huk)j b( 3second charge, and the force between them is 1.0 N. What is the magnitude oc3fbjmcf2( uuj30 k/ )c2r pqhf the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart are thu g,h:bpt fvev(,i n3,ey?

  The force between a 1yadhdu ; w*h-$30 \; mC$ charge and a $-90 \; mC$ charge is 1.8 N. How far apart are they?

  Two point charges, initially 2.0 cm apart, experience a 1.qso5ju y squ:6 .v(j6y0-N force. If they are moved to a new separation of 8.0 cm, what is the electric force j5qsy s u (u6:oq.yj6vbetween them?

  Three identical point charges of 2.0 mC are8m;z a*ur40zk3 nrdee placed on the x-axis. The first charge is at the origin, the second to the right at x = 50 cm, and the third is at the 100 cm mark. What are the mk8ne*r4zu ;em0r a3 zdagnitude and direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are placed on the x-axis. A charge of +2.0 mC is pl6i n/gfn p(/p-ewf/u*pnts :kaced at the origin, -2.0 m C to the right at x = 50 cm, and +4.0 mC at the 100 cm mark. What are the magnitude a snp:knf/fnp /tiu p6 /(g-*ewnd direction of the electrostatic force which acts on the charge at the origin?

  Three point charges are located at the following positions: Q1 = 2.00 mC r5f cfa9/lgo//5hecux(7n x eat x = 1.00 m; Q2 = 3.00 mC at x = 0; Q3 = -5.00 mC at x = -1.00 m. What is the magnitude of the force on the 3.005xe79f5lf o(e/na/c h u rgx/c-mC charge?

  A point charge of +Q is placed at the center ub6l.( u(: nlb *rwqlas+hv7 aof a square, and a second point charge of -Q is placed at the upper-left corner. It is observed that an electrostatic force of 2.0 N acts on the positive charge at the center. What is the magnitude of the force that acts on the center charge if a third charge of -Q is plaa7:*wb(u nu l sllv+6hqb.(r aced at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1prb wa1 20 k3ik;t-xvk.0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is the m-k;r2 k v3a px0tiw1bkagnitude of the net force on the 5.0 nC charge?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.0 nC is at (0, 0.10 m); Q3 = jpnsx,moq+ib* 3l l,z lq)5/m5.0 nC is at (0, 0). What is the directil 3mn+zbo ql*5,)ls,p /miq xjon of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices h*cz gwh2,sh *of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which ac*z h2cs*hg hw,ts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separated by 3.0 m. At what c)7,cblon de )point, on a line between the n) d7 cloceb),two charges, would it be possible to place a charge of -Q such that the electrostatic force acting on it would be zero?

  A +3.0-C charge is at the origin and a +9.0-C charge is at x = 4.0 m. Wmbqar1z(jsa2 qe q565here on the x-axis can a third charge be placed so the net force on it 21e5aq6a qs(rmzbq j5 is zero?

  Charge +2q is placed at the origin and charge -q is placed +u kqn0fom+;pu c. +fiat x = 2a. Where can a third positive charge +q be placed so that the force oi.+ko;0mfu+p +fnq uc n it is zero?

  A copper penny has a mass n8pa/mj2u m) nof 3.0 g. A total of $4.0 \times 10^{12} \; electrons$ are transferred from one neutral penny to another. If the electrostatic force of attraction between the pennies is equal to the weight of a penny, what is the separation between them?

  An electron is held up against the force of gravity by the an*z ab py0:nkw1)krrwt)35m y ttraction of a fixed proton some distance above it. How far above the electron is the protonaw3b1m)w0t r)*yn ykp r nk:5z?

  Two 0.20-g metal spheres are hung from a common point by noncondq s h.ban93v (hgmme;;-fho4 ructing threads which are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the th-ohh hfsv9;3m mb(;4gaq .enrreads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is the magnitude of the electric 6foekyt.5oumqc cx;388jvw2field at a distance of 1.0 m fe6x2kc vt ;um c8qy3wojf5o .8rom the nucleus?

  What are the magnitude and direction of the electr(h0h *d0ba yzaic field at a distance of 1.50 m from a 50.0-nC charge?( b*y0h haadz0

  A 5.0-C charge is 10 mix +qixj* iw1,xix5t- from a small test charge. What is the magnitude of the electric field at the location of the t1 w -xx tiq*,ii5+xxijest charge?

  A 5.0-C charge is 10 m from a small test charge. What t3 g scrs.cu4 k7hot.,04 w3s er4nuezis the direction of the electric field?ze0orh.kc3sc 4ue4 t nr,t3g7w4 s.su

  A 5.0-C charge is 10 m froaqn x3vbx68qj*.9ts rm a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge places9xv8.bnx q*t3raj 6 qd at the location of the test charge?

  Two point charges each have a value of 3.0 C and are separated bmmjr; lg1hqqp286l6e cy0s m/e)s -k ky a distance of 4.0 m. What is the electric field at a point midway between the tw61 ;gmme-lkl20 m6ycqe8jrssh ) p/kqo charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4.0 mC char a9c6ac5 zv3jnge is place5czv6 3cj9ana d at the 50 cm mark. What is the electric field at the 30 cm mark?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -ynd0n8 ey x2-mw)*ljo4.0 mC charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric field zero?o x-0n y2ymw)nl8jd*e

  Two point charges of +3.0 mC and -7.0 mC are placed at x = 0 and x = 0.u, d/;p *i(kfe0gtfclqd09 wc20 m. What is the magnitude of tc0wgdpif;fcqk /e(* d90 u,lthe electric field at the point midway between them?

  Three 3.0 mC charges are at the three corners of a square of side 0.55 g*v cjb5m4g7u6yzw:: r wnbb0 m. The last corner is occupied by a -3. 7yb:z* 4uwb5:vcjgg mnwbr650 mC charge. Find the electric field at the center of the square.

  Consider a square which 4t9/p*yc vori is 1.0 m on a side. Charges are placed at the corners of the square as foioyt4r v9*/cp llows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3.0 mC at (1, 0); -3.0 mC at (0, 1). What is the magnitude of the electric field at the square's center?

  A force of 10 N acts on a charge of 5.0 tg2(ao*t e jsk2sp7 ;fmC when it is placed in a uniform electrik a(; t2jp*27etssg ofc field. What is the magnitude of this electric field?

  A particle with a charge of 4.8ypa1s7) 0zx +g rceui0 mC has a mass of $5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

  A Styrofoam ball of u3 :pdlrx./ ,w l3lugjmass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on th,p l urx:gu3/ll.3wdje ball for it to be suspended?

  A foam ball of mass 0.150 g carries a charge of -2.2j gs37ls5/f lwk a)awnk0sc3 00 nC. The ball is placed inside a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the es) c l2l33w /5kwaas 7sgnfk0jlectric field?

  A metal sphere of radius 10 cm carries a charge of +2.0 mC. What is the magn:ko*4xufv+jhbh dc 4b ) ypm;kt8cr:.itude of the electric field 5.t+ vyrdjb:c8b4mk) u.f4:k*xh o hpc;0 cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. Wha l2wdnr 7zj-d 4vhti5.t is the electric field 6.0 cm from the center of the s7wv 2jlh i n-4td.d5rzphere?