State the law of conserqq(74gwa)9qo.u mxw lvation of electric charge.

  Is it possible for two negative charges tj5/c j 0 ;ldgh6 jp+pnjyc-ptsv9x+2xo attract each other?

  Is it possible for a positive and a negativ:p5n2/ 1egvstxnn d l:e charge to attract each other?

  A glass rod is rubbed with a piece of silk. During jyo 5r8;36emyudrd2 w the process the glass rod acquires a pos ryd e6 j;32m5wdoyur8itive charge and the silk

  A proton carries a

  The model of the atom shofke:.+e sy-zrws a

  A neutral atom always h+0ubbb pa ,ax(kn)9tias

  An atom has more electrons than protons. c2w (v vl ik39,p7kmpl The atom is

  Materials in which the electronsteii znw -um3od(q;c0p n0(vfi8 5/m p are bound very tightly to the nuclei are referred to asf 80tuim (35edmqz wnc0;(p/ vnii p-o

  Materials in which the electrons are bound very loosely to the nuc 7wm2kb;.jit slei and can move about freely within the material ari bksm72wtj ;.e referred to as

  A negatively charged rod g946/cb.mstqbh x9 bxis brought near one end of an uncharged metal bar. The/x4b hcgts6qmbb9x 9. end of the metal bar farthest from the charged rod will be charged

  Sphere A carries a net positive charge, and sphere B is ac qjkawm(d 62 :oj1o 0c*u*o-at:axyneutral. They are placed near each other on an insulated table. Sphere B is briefly touched with a wire that is gj*mjo 6x*aka20ay( :q1-atuo :oc cwdrounded. Which statement is correct?

  How can a negatively charged rod charge an electroscxcar2:t 6t2s b8y8lbiope positively?

  An originally neutral electroscope is briefly touched witn;x,e,; m tpmdougif g) )mh21h a positively charged glass rod. The electr hn,m)gg ; mmdt) o,;p1xu2feioscope

  An originally neutral electroscope is grounded briefly while a positia n: ky-ih nag+/8uw)ively charged glass rod is held near it. After ig wn) a+i-hnayk8u:/ the glass rod is removed, the electroscope

  A positive object touches a neutral electroscope, and the lea k1z wd9afv+,zves separate. Then a negative object is brought near the electroscope, but does not touch it. What happens to the ldk+1f 9,awz zveaves?

  A large negatively charged object is placed on an yhjruz /f(29 sinsulated table. 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 d9z 2/yf rushj(oes either ball touch the negative object. What is the final charge on each ball?

  Charge is

  What are the units of 5p 4m(7xfct9ddph, apthe Coulomb constant $k$, which appears in Coulomb's law?

  Two charged objects are separated by a distance d. The fir* m f02hk*/ul sr+kxrrst charge is larger in magnitude than the second cha+/0*mk ru*xh frs l2rkrge.

  Sphere A carries a net charge and sqe9cujlq6 yf7 //v g1cphere B is neutral. They are placed near each other on an insulated table. Which statement ujyq//e7gl6cf91qc v best describes the electrostatic force between them?

  Two charged objects attract each other with a certain fh)w;4)i+a sdjv7nhj nd, s5ktorce. If the charges on both objects are doubled with no chang j5 tswn7+dj)n)ksvi;h4ah d,e in separation, the force between them

  Two charges are separated by a distance d dkv+h( iwgy0* xr1a6h and exert mutual attractive forces of F on each other. If the charges are separated by a distance of d/3, what ard*(a0 i kxrhy6v1+ ghwe the new mutual forces?

  Two charged objects attract each other with a f4r2rdcx rkkkk09 m j;: d0+slkorce F. What happens to the force between them if one charge is doubled, the other charge is tripled, and the separation distance 2xmdk0k9+4d0kj rlrc;krks : between their centers is reduced to one-fourth its original value? The force is now equal to

  An electron and a proton are separated by a distan*of)obb 8( e1l 9)e5dwpab gatce of 1.0 m. What happens to the magnitude of the force on the proton if a second electron is placed next oblgw*f5e)e 8b1) badp(a to9 to the first electron?

  An electron and a proton are separated by a distance of 1.0 m. What happensr yyr,rc-e-4ozx yd-, -ltf b2vz57dj to the magnitude of the force on the firs - 7 x,-jrredd-b,2lztz4y-yfo rvcy5 t electron if a second electron is placed next to the proton?

  An electron and a proton a8t .g7no*ff jjre separated by a distance of 1.0 m. What happens to the size of the force on the proton if the electron is moved 0.50 m closer to the prg8jf.jtf 7n*ooton?

  A point charge of +Q is placed at the center of a square. When a secq -n rgs;lb ,bt8n)+ps6e4:aog ,eshuond 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 charges of -Q are placed , b q4pnass:;hrl-b 8se,eug6gton+) 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 iij6/ddsl/ ai 5s placed at the centroid of an equilateral triangle. 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 the magnitude of the force that acts ondilij/ 5sd 6a/ the center charge due to a third charge of +Q placed at one of the other vertices?

  Which of the followi7a pw 7jvu,+l), vniki1-derong is not a vector?

  At twice the distance from a point charge, the s3( woy31xul f dmk(k(mtrength of the electric field

  Is it possible to have a zero electric field value betweenbj3 vk :npc wf.vrl3ytq.) xd,)(,fgr a negative and positive charge along the line joining tp. yr))bcnvgkx v:fdtj w.3q, r 3,l(fhe two charges?

  Is it possible to have a zero electric field value between two posit+ hz*5 blmzm9.ef;lxpive charges along the line joining the twolm 5pef ;m+ zlbz.xh9* charges?

  Electric field lines near psitive pf8k:. k8fz hjmoint charges

  The electric field showm(iezf319vkxdy8rf/ * x c 8gbn

  Can electric field lines intersect in free ss/p.ko(w le7bk nqu (o3fv0)upace?

  A solid block of metalia, 38 afnun:rod):tj in electrostatic equilibrium is placed in a uniform electric field. Give a statement concerning the electri:dfjit ,8:n)aar 3u onc field in the block's interior.

  If a solid metal sphere and a hollow metal sphere of equal diamewnr;qx3lh z4xo0b)*lc qi.; ,ewx)hjters are each giv; ,l nb;chh.x4) 0)qwlr zxqi*jwoe3xen the same charge, the electric field (E) midway between the center and the surface is

  A cubic block of aluminum rests on a wooden table in a region wh3 6 7i)gq.zcct2 opown5nv2i fere a uniform electric field is directed straight upward. What can be said concerning the charge on t5q2v7ng3iizw.fp cootc 2) 6nhe block's top surface?

  If a conductor is in electrostatic equilibrium newc yl ok3elf) s9(0m1gar an electric charge

  A positive point charge is enclosed in a ho :eip+,6gwqwbllow metallic sphere that is grounded. As compared to the case without the hollow sphere, the electric field at a point directly above the hollow sphe :gpe +wq6,bwire has

State three properties 4h rl:,06+rhn lxq-cev6nuqi of conductors in static equilibrium.

State Gauss's law.

  The charge carried by one electron + holyd6/pdw x:qxrt f*,0a,kis $e = -1.6 \times 10^{-19} \; C$. The number of electrons necessary to produce a charge of $-1.0 \; C$ is

  A piece of plastic has a ne* hd6; .sjy5dx/nlaw it charge of +2.00 mC. How many more protons than electrons nw *;yx/. dsad6lj 5ihdoes this piece of plastic have?

  What is the charge on 1 kg e( w (ch5ampb0of protons?

  An atomic nucleus has a chargefma+,om4q:jaaqf q( 6 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 cha -cmmj.1p;dsfwc4r*5 o5b r znrge values of 2.0 and -4.0 mC, respectively. What is the magnitude of the elect. d;mwn5z4mcc1 s5rr pjo b-*fric force between them?

  A 1.0-C charge is 15 m from a second charge, and the force betweend,vkn6,e ji b6 them is 1.0 N. What is the ,nbkj6i ,ev6dmagnitude of the second charge?

  Two 1.0-C charges have a force between them of 1.0 N. How far apart ar/ j rgveqo287xe they?

  The force between a djnk ;r7 lrq/5$30 \; mC$ 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 1.0-N force. If theyln za gol4i62pzf44 tvp.*/x m are moved to a n am.z4l4i lftzp2vog4/ np *x6ew separation of 8.0 cm, what is the electric force between them?

  Three identical point charges of 2.0 mC are placed on the x-axis. The first xwrh1*fmo+m 2(,)x ek8erig3x( ecu ce*v 1v echarge 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 magnitude and direction of the electros)xvh e312ui*e oemr vmc(r,xg w+c(e8 xfe1*k tatic force which acts on the charge at the origin?

  Three point charges are placed on9xjm2l nju3j3 the x-axis. A charge of +2.0 mC is placed 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 and direction of the electrostatic force which acts on the 2 unxljmj933jcharge at the origin?

  Three point charges are located at the followimtj(( a a )i pg7k7zhst:u/kb(ng positions: Q1 = 2.00 mC at x = 1.00 m; Q2 = 3.00 mC at x = 0;77 ((hj zkgsuikbap) t(a m:/t Q3 = -5.00 mC at x = -1.00 m. What is the magnitude of the force on the 3.00-mC charge?

  A point charge of +Q is bn i2zr2leb2;placed at the center of 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 ib2b;i 22lerz ns placed at the lower-left corner?

  Q1 = 6.0 nC is at (0.30 m, 0); Q2 = -1.eeik -v 5l d.kzdfl6gkvx:ci 8vx.3:8 0 nC is at (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What 5v . :88ed6 gkfv: dekil-xl ck3zvxi.is the magnitude 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 a.mi+dl a, oepcryq348 t (0, 0.10 m); Q3 = 5.0 nC is at (0, 0). What is thdo,+8p. ieya3mlcq 4 re direction of the net force on the 5.0 nC charge?

  Three identical charges of 3.0 mC are placed at the vertices of an equilateralx ) v7b1)tm)adwypux( triangle which measures 30 cm on a side. What is the magnitude of the electrostatic forc ptdu ))xxmab (7v1)wye which acts on any one of the charges?

  Consider point charges of +Q and +4Q, which are separateg9uop l +mg;k) e+wkskij78j.d by 3.0 m. At what point, on a line between the two charges, would it be possible to place a charge of -Q su) kow jksu7ge8 ;i+lm+gk.j9 pch 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 1gd+gzsa,te -pc3 efin /mc8, = 4.0 m. Where on the x-axis can a third chac,- e e+pzns31fad mg8g ,c/tirge be placed so the net force on it is zero?

  Charge +2q is placed at the origin and charge -q is place0zbog2m+f )uym .*q jmd at x = 2a. Where can a third positive charge +q be)0ufzgm+ o2.mqby *jm placed so that the force on it is zero?

  A copper penny has a mass of 3.0 g. sr, cbf dqwh4n/ 1uha0xm7/+floay+: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 agaitup( ,ez 5dm2inst the force of gravity by the attraction of a fixed proton some distance above it. How far above them(,tu2dez5 i p electron is the proton?

  Two 0.20-g metal spheres are hung from a common point by nonconducting threads wp,qd qd5:8gy chich are 30d8qc g qd,y:5p cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the threads is $20^{\circ}$. How much charge was placed on each sphere?

  An atomic nucleus has a charge of +40e. What is the magniturk: 1pli,7d)vk jk: tmeqr*,ude of the electric field at a distand kp ):liuqk,:vrr j*1mk7,tece of 1.0 m from the nucleus?

  What are the magnitude and o xp1 6kf *uz56k ax:hmaop 8d-fzz1l2direction of the electric field at a distance of 1.50 m from a 50.0m5f8zk*pp6zfohk2 1:u-o xx6 zaal1d-nC charge?

  A 5.0-C charge is 10 m from a ah6b4obj ,/nhsmall test charge. What is the magnitude of the electric field at the locaa ,bh job4h6/ntion of the test charge?

  A 5.0-C charge is 10 m from a small test charge. What is the direction of thmh7gjmzo,(pqdi 6 )j4 j, 7kxxe elect4 hjmzx,7x)(ki jpj m,7 do6qgric field?

  A 5.0-C charge is 10 m from a small test charge. What is the magn3 z9gc o+ih:po*ij ,ik9k)bjtitude of the force experienced by a 1.0 nC charge placed at the location of the tp t: hk,gociio)b*9i +z93jk jest charge?

  Two point charges each have a value of 3.0 C and are separated by a distdc2 wnzl +q*n+ance of 4+d +l*qw cnnz2.0 m. What is the electric field at a point midway between the two charges?

  A 5.0-mC charge is placed at the 0 cm mark of a meter stick and a -4u( ol *p.ykx2w.0 mC charge is placed at the 50 cm mark. What is tu x wlk(.*2ypohe 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 -4.0 mC chare-ss+/v-b )z* xqs5 yc*danorge is placed at the 50 cm mark. At what point on a line*- bv+ nsqc-)rsa*dyze5 s/ ox joining the two charges is the electric field zero?

  Two point charges of +3.0 mC and -7.0 mC are placed at x =;p m77tyv.tf b 0 and x = 0.20 m. What i f;vb7.y7mtt ps the magnitude of the electric field at the point midway between them?

  Three 3.0 mC charges are at the thrlys, *fxauh, 0ee corners of a square of side 0.50 m. The last corner is occupied by a -3.0 mC charge. Find the electric field at the centef,xa*,usl 0yhr of the square.

  Consider a square which is 1.0 m on-vaw .,bdk p)h a side. Charges are placed at the corners of the square as follows: +4.0 mC at (0, 0); +4.0 mC at (1, 1); +3.0 mC at (1, 0); -3.0 mC at (0, 1). v dh,w.k- abp)What is the magnitude of the electric field at the square's center?

  A force of 10 N acts on a c ge951docvxj7harge of 5.0 mC when it is placed in a uniform electr17od9vc gejx5 ic field. What is the magnitude of this electric field?

  A particle with a chargua(7d;rtd,c )/t0a1 w ns2j i7 p0uhbv)tyzwse of 4.0 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 maoq gju wa69 :2k9k0yhmss 0.120 g is placed in an electric field of 6000 N/C pointing downward. What k2y9w6jo amuk :90h gqcharge must be placed on the ball for it to be suspended?

  A foam ball of mass 0.150 g carrijb f.h j tt1;md/t1uu2es a charge of -2.00 nC. The ball is placed ins1t2b tthm1fjjdu.u/; ide a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

  A metal sphere of radius 10 cm carries a char1:s0jpq-fyr u ge of +2.0 mC. What is the magnitude of the electric field 5.0 u:-ysp fq01rj cm from the sphere's surface?

  A metal sphere of radius 2.0 cm carries a charge of 3.0 mC. What is tpwvq0t+f6mp tob 1*tn/wccti57 f-(ahe electric field 6.0 f /pfi( o c6t tm+-1nb07tavt5q wwp*ccm from the center of the sphere?