# A charge +Q and -2Q were placed on first and third of three very large parallel plates. The middle plate is earthed. Find the chargeon right extreem plate

17,079 questions, page 6
1. ## Physic

A point charge q1=-8 is located at the orgin of a rectangular coordinate system. A second charge q2=6nC is located at a distance of 0.2m from the orgin on the positive x-axis, and a third charge q3=12nC is located at a distance of 0.2m on the positive

asked by Nikki on March 14, 2012
2. ## physics

need help with this problem A charge of -2.73 uC is fixed in place. From a horizontal distance of 0.0465 m, a particle of mass 9.50 x 10-3 kg and charge -9.56 uC is fired with an initial speed of 97.2 m/s directly toward the fixed charge. What is the

asked by alex on September 30, 2012
3. ## Physics!

need help with this problem A charge of -2.73 uC is fixed in place. From a horizontal distance of 0.0465 m, a particle of mass 9.50 x 10-3 kg and charge -9.56 uC is fired with an initial speed of 97.2 m/s directly toward the fixed charge. What is the

asked by Anonymous on September 30, 2012
4. ## physics

A positive charge q1 = 2.70 uC on a frictionless horizontal surface is attached to a spring of force constant k as in the figure. When a charge of q2 = –8.60 uC is placed 9.50 cm away from the positive charge, the spring stretches by 5.00 mm, reducing

asked by Brette on November 7, 2012
5. ## PHYSICS

Two point charges are placed on the x axis as follows: Charge q1= 4.20 is located at x= 0.185 , and charge q2= 4.80 is at x= -0.280 . What are the magnitude and direction of the net force exerted by these two charges on a negative point charge A =

asked by Anonymous on September 19, 2012
6. ## physic

two point charges are located on the y axis as follows : charge q1 = -1.50nc at y= -0.600m, and charge q2 = +3.2nc at the origin (y=0) what is the net force (magnitude and direction) exerted by these two charges on a third charge q3 = +5.00 nc located at y

asked by yanis on February 12, 2013
7. ## physic

A charge of -2.73 μC is fixed in place. From a horizontal distance of 0.0465 m, a particle of mass 9.50 x 10-3 kg and charge -9.56 μC is fired with an initial speed of 97.2 m/s directly toward the fixed charge. What is the distance of closest approach?

asked by derek on October 11, 2012
8. ## Chemistry

1. Write the correct formulas for the following: A. A compound composed of melt X which has a +2 charge and nonment Y which has a -3 charge (write it as “XY” including the correct subscripts as necessary.) My answer: by adding or taking away a charge

asked by Ummm on December 13, 2017
9. ## Physics

Given a square of sidelength a = 4 cm. We place a charged particle at each corner, three of them carry + 2 nC of charge and one carries the same amount of negative charge. What is the magnitude of the electric field at the center of the square? I read a

asked by Sandra on February 6, 2010
10. ## physics

Two point charges are placed on the x axis as follows: Charge q1= +4.00 nC is located at x= 0.200 m, and charge q2= +5.00nC is at x= -0.300 m. What are the magnitude and direction of the net force exerted by these two charges on a negative point charge q3=

asked by Jen on January 21, 2008

Given the points A (1, 2), B (-4, 4), C (-3, -3) and D (2, -5), determine ifLINE:AB and LINE:CD are parallel, perpendicular or neither. A. parallel B. both perpendicular and parallel C. perpendicular D. neither MyANSWER: A

asked by Unknown on September 4, 2013
12. ## physics

An electric force moves a charge of +1.85 10-4 C from point A to point B and performs 6.70 10-3 J of work on the charge. (a) What is the difference (EPEA - EPEB) between the electric potential energies of the charge at the two points?

asked by Anonymous on March 12, 2013
13. ## pre-algebra

atoms contain charged particles called protons and electrons. each proton has a charge of +1, and each electron has a charge of -1. A sulfur ion has 16 protons and 18 electrons. find the net charge. Thank-You

asked by Shay on November 17, 2012
14. ## Math

Assume that the rate of population growth of ants is given by the equation: dP/dt=.1P(1 - P/730)-(129000/7300) a. If P(0)=150, what happens to P as t gets very large? b. If P(0)=800, what happens to P as t gets very large? c. If P(0)=800, what happens to

asked by Raj on December 11, 2013
15. ## Calculus

Assume that the rate of population growth of ants is given by the equation: dP/dt=.1P(1 - P/730)-(129000/7300) a. If P(0)=150, what happens to P as t gets very large? b. If P(0)=800, what happens to P as t gets very large? c. If P(0)=800, what happens to

asked by Magnus on December 11, 2013
16. ## physics

Two small identical metal spheres, A and B, on insulated stands, are each given a charge of +2.4 10-6 coulomb. The distance between the spheres is 7 10-1 meter. Calculate the magnitude of the electrostatic force that the charge on sphere A exerts on the

asked by Dar on March 24, 2010
17. ## Maths

the monthly charge C of an electricity company is made up of follows:A constant charge a and A charge which varies directly as N the number of units used . when N=80 C =820 naira . When N =124 , C =1040 naira find the relationship between C and N ,find C

asked by Anita on January 9, 2016
18. ## pre ap physics

** When s conducting sphere is charged positively, initially the charge is deposited on the left side. However, due to the sphere's conducting nature, the charge spreads uniformly throughout the surface of the sphere. Charge is uniformly distributed

asked by Angela here again on February 27, 2011
19. ## physics

At a certain distance from a point charge, the potential due to the charge is |5.93 V, and the magnitude of the electric field is 13.5 V/m. (Take the potential to be zero at infinity.) Is the electric field directed toward or away from the charge? Here

asked by Samantha on February 25, 2008
20. ## Chemistry

Choose the true statements regarding the charge-minimized Lewis structure(s) of the BrO2- ion. (selet all that apply) a. There is only one charge-minimized structure for this ion. b. There are two charge-minimized resonance structures for this ion. c. The

asked by Lindsay on October 5, 2008
21. ## Physics

We have an infinite, non-conducting sheet of negligible thickness carrying a uniform surface charge density +σ=7.00e-6 C/m2 and, next to it, an infinite parallel slab of thickness D=17 cm with uniform volume charge density ρ=−4.94e-5 C/m3 (see sketch).

asked by Annoyingmous on June 15, 2013
22. ## Physics

A negative charge -Q is placed inside the cavity of a hollow metal solid. The outside of the solid is grounded. Q: Is there any excess charge induced on the inner surface of the piece of metal? A: Yes, +Q Q: Is there any excess charge on the outer surface

asked by Sean on December 25, 2009
23. ## Math - Credits & finance charges

On the May 1 billing date, Mary had a balance due of \$970.60 on her credit card. The transactions during the following month were: May 5 Payment \$400.00 May 10 Charge: airline tickets \$381.00 May 22 Charge: hotel \$270.60 May 25 Charge: florist \$60.20 The

asked by Sunny on March 10, 2008
24. ## physics

How do I: a.) find the energy in a 3.50x10^-5f parallel plate capacitor if it holds 2.00x10^-3c of charge b.)find the voltage between the plates c.)determine the new voltage after doubling the stored energy

asked by Anonymous on March 12, 2015
25. ## physics

Two capacitors, C1 = 5 μF and C2 = 12 μF, are connected in parallel, and the resulting combination is connected to a 9 V battery. Find (a) the equivalent capacitance of the combination, (b) the potential difference across each capacitor, and (c) the

asked by maram on May 13, 2019
26. ## College Physics

particle 1 of charge q1 = 1.04 ìC and particle 2 of charge q2 = -2.99 ìC, are held at separation L = 10.8 cm on an x axis. If particle 3 of unknown charge q3 is to be located such that the net electrostatic force on it from particles 1 and 2 is zero,

asked by Stephanie13 on July 6, 2012
27. ## algebra

identify the equation of the line through (-1,-4) and parallel to y=-6x+4 i got y=6x+10 Isn't the slope of the original line from y=-6x+4 equal to -6. Your solution has a slope of +6. Are those two lines parallel? i have to identify the equation of a line

asked by eddie on December 14, 2006
28. ## physics

A point charge with charge Q1 is held stationary at the origin. A second point charge with charge moves from the point (x1, 0) to the point (x2,x2 ).

asked by Cassie on January 21, 2011
29. ## physics

A 6 mC charge experiences a force of 6 N directed north. What is the electric field (magnitude and direction) at the location of the charge? Would E=1000 N/C and direction is north Find the force (magnitude and direction) on a -20 mC charge that replaces

asked by Alex B. on May 4, 2012
30. ## physics

6. A charged particle remains stationary in an upwardly directed E field between two parallel charged plates separated by 2 cm. Compute the potential difference V between the plates if the particle has a mass of 4 x 10-13 kg and a charge of +2.4 x 10-18 C.

asked by ike on March 4, 2011
31. ## Physics

I need help on the following questions, I am stuck and not sure on what to do, can someone work it out and or tell me steps to obtain the answer. Thank you 1) A point charge of -0.90 microC is fixed to one corner of a square. An identical charge is fixed

asked by Kevin on September 13, 2006
32. ## PHYSICS

When a conducting sphere is charged positively, initially the charge is deposited on the left side. However, due to the sphere's conducting nature, the charge spreads uniformly throughout the surface to the sphere. Charge is uniformly distributed because:

asked by sophie on April 8, 2009
33. ## + --> a sphere --> (+)

Multiple Choice Help: ** When s conducting sphere is charged positively, initially the charge is deposited on the left side. However, due to the sphere's conducting nature, the charge spreads uniformly throughout the surface of the sphere. Charge is

asked by Angela on February 25, 2011
34. ## Algebra

I'm suppose to write an equation with the following information: Line passes through (2,-6) and is parallel to x=8 I know i must use the slope point form the problem is that since x=8 I don not know which is the slope. Please help me :) The line for x=8 is

asked by claudia on January 25, 2007
35. ## Physics

A charge q1 = 5.00nC is placed at the origin of an xy-coordinate system, and a charge q2 = -2.00nC is placed on the positive x axis at x= 4.00cm . If a third charge q3 = 6.50nC is now placed at the point x= 4.00cm , y= 3.00cm find the x and y components of

asked by Molly on September 7, 2014
36. ## Physics

Two infinitely long slits, S1 and S2, each of width d=0.1 cm are used to prepare a box-shaped electron beam with energy E=400 eV. At what distance x from the slit S2 will the thickness of this electron beam double due to Coulomb's repulsion? The linear

asked by Anna on April 4, 2010

WHO MADE THESE ATOMIC DISCOVERIES? An atom has a nucleus that is very small In a reaction, the mass of the products must equal the mass of the reactants. Electrons are negatively charge pieces of matter. An electron has a mass that is very small compared

asked by Sal on April 14, 2011
38. ## Chemistry

If you have to write the products of the chemical reaction Fe+O*2( asterisk means subscript),how would you know the charge of Fe in the compound FeO? If the charge is 2+, then the product would be FeO, but if the charge was 3+, then the product would be

asked by Emily on April 17, 2010
39. ## physics

An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is = 2.6 x 10-7 C/m2, and the plates are separated by a distance of 1.4 x 10-2 m. How fast is the electron moving just before it

asked by Amy on March 19, 2011
40. ## Circuits

I have to calculate the voltage across the resistor of an rlc circuit where the 4.7nF capacitor is in parallel with the .200 H inductor for different frequencies (starting with 1000 Hz) They appear at the top of the circuit and they both looked to be in

asked by Heather on April 9, 2012
41. ## physics

A conducting spherical shell with a total charge of +12.6 micro-coulombs has a point charge of -3.6 micro-coulombs placed at its center. The negative point charge will push the electrons in the spherical shell away from it. This will leave the inner shell

asked by Mandaleigh on February 10, 2012
42. ## Physics

There is a very large horizontal conducting plate in the x−y plane (consider it infinitely large). Its thickness is h. The charge densities on the upper and the lower surfaces are both equal to +σ. What is the magnitude of the electric field? Express

asked by Anonymous on February 21, 2013
43. ## Science

Please help?!? In figure 20-1, where is the field of each charge the strongest? The picture shows A. A postive charge with arrows facing out and B. A negative charge with the arrows pointing in. This is a short answer question, but I don't understand what

asked by Kenzie on April 29, 2016
44. ## Physics

A positive charge +q1 is located to the left of a negative charge -q2. On a line passing though the two charges, there are two places where the total potential is zero. The first place is between the charges and is 4.03 cm to the left of the negative

asked by CombatVetUSMC on July 14, 2012
45. ## Physics; Elect.

1. A charge (uniform linear density=9.0 nC/m) is distributed along the x-axis from x=0 to x=3.0m. Determine the magnitude of the electric field at a point on the x axis with x=4.0m. a)81 N/C b)74 N/C c)61 N/C d)88 N/C e)20 N/C 2. A +2nC point charge is

asked by Thomas on February 1, 2011
46. ## algebra 1

Tell whether the lines for each pair of equations are parallel, perpendicular, or neither. y=-4x+3 and -2x+8y=5 A. parallel B. perpendicular C. neither I think parallel?

asked by sydney on December 3, 2017
47. ## Algebra 1

1. Which line is the flattest (or is less steep)? Why? y = 5x -6 y = 5x + 6 y = x - 3 y = x + 3 I think it's the last one! Parallel lines have the same slope. The first two are parallel lines with the steepest slope; the last two are parallel lines as well

asked by Margie on October 13, 2006
48. ## Physics

A beam of unknown charged particles passes at right angle to the direction of magnetic field of 9.0 10-2 T. If the speed of the particles is 3.0 104 m/s and force experienced by a particle is 8.64 10-16 N, how many electric charges are carried by one

asked by Landon on May 26, 2009
49. ## SCIENCE

A block of mass m having charge q is sliding down an inclined plane of inclination and coefficient of friction.When uniform electric field E is applied parallel to the base of inclined plane,the block slides down with constant velocity.The value of E is?

asked by GELSEY on April 28, 2017
50. ## College Physics

A 12.0- A 12.0- A 12.0-V battery remains connected to a parallel plate capacitor with a plate area of 0.204m^2 and a plate separation of 3.14mm . What is the charge on the capacitor? Q = C How much energy is stored in the capacitor? Uc = J What is the

asked by Lanise on January 31, 2010
51. ## Physics

An electron starts from one plate of a charged closely spaced (vertical) parallel plate arrangement with a velocity of 1.78×104m/s to the right. Its speed on reaching the other plate, 2.25cm away, is 3.63×104m/s . If the plates are square with an edge

asked by Yasamin on June 17, 2015
52. ## Physics

How does the electrical force relate to the charge of an object? It is inversely proportional to the square of the charge. It is directly proportional to the square of the charge. It is inversely proportional to the charge. It is directly proportional to

asked by Anonymous on March 9, 2017
53. ## CHEMISTRY

Write formulas for the compounds that form from Sr and each of the following polyatomic ion: NO3 −1, SO4 −2, PO4 −3. SR (+3 CHARGE) NO3(-1 CHARGE) SO4(-2 CHARGE) PO4(-3 CHARGE) Re posting this question. hopefully someone can help me answer this now.

asked by MELISSA on June 24, 2016
54. ## Physic

What is the net charge on a capacitor in a circuit ? Is it ever possible for the charge on one conductor to be different than the charge on the other conductor? Explain.

asked by sahine on March 30, 2014
55. ## Physics II

A test charge of +2 μC is placed halfway between a charge of +6 μC and another of +4 μC separated by 10 cm. What is the magnitude of the force on the test charge?

asked by Sam on January 13, 2016
56. ## Physic II

What is the net charge on a capacitor in a circuit ? Is it ever possible for the charge on one conductor to be different than the charge on the other conductor? Explain.

asked by Pastry on March 13, 2014
57. ## physics

Two charges are separated by a distance d = 5 m. The charge q1 has a charge of q1= 7.0 µC (microcoulombs) and q2 has a charge of q2= 6.8 µC. What is the force between the charges?

asked by marissa on May 1, 2011
58. ## Physics

Consider the following four possibilities for two point charges and choose the one(s) that do not change the magnitude of the electrostatic force that each charge exerts on the other: A. Double the magnitude of each charge and double the separation between

asked by Patrick on July 18, 2012
59. ## 2 more physics questions I need help on, please?

In which of these situations does more charge flow past a given point on a wire? a. Current of 4 A in 1 min b. Current of 2 A in 0.5 min c. Current of 8 A in 2 min d. All are the same charge I think the answer is C? Since the formula for finding current is

asked by physicsclass on April 23, 2011
60. ## physics

Find the electric potential energy for the following array of charges: charge q1 = +3.0 µC is located at (x, y) = (0.0, 0.0) m; charge q2 = +3.0 µC is located at (4.0, 3.0) m; and charge q3 = −1.0 µC is located at (0.0, 3.0) m.

asked by anybody? on January 31, 2012
61. ## physics

A +5 microcoulomb charge experiences a .55 N force in the positive y direction. If this charge is replaced with a -2.7 microcoulomb charge, find the magnitude of the force in this case.

asked by jdubya on January 30, 2012
62. ## Physics 131

A -2.72 ìC charge is placed at the center of a conducting spherical shell, and a total charge of +6.35 ìC is placed on the shell itself. Calculate the total charge on the outer surface of the conductor.

asked by RB on February 1, 2015
63. ## Physics. Speed of electron...

An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is = 1.5 x 10-7 C/m2, and the plates are separated by a distance of 1.4 x 10-2 m. How fast is the electron moving just before it

asked by Sarah on February 10, 2009
64. ## physics

A positive charge of 1.100ƒÊ C is located in a uniform field of 1.10~105 N/C. A negative charge of -0.100ƒÊ C is brought near enough to the positive charge that the attractive force between the charges just equals the force on the positive charge due

asked by Anonymous on September 1, 2011
65. ## Physics

A positive charge +q is located to the left of a negative charge -q. On a lne passing through the two charges there are two places where the total potential is zero. The first place is between the charges and is 3.8 cm to the left of the negative charge.

asked by Sam on January 24, 2011
66. ## Math

Are these correct with the lines y=0.15x+0.79 0.11x-y=-0.85 The line represents an estimate of the average cost of gasoline for each year. The line estimates the price of gasoline in January of each year (Bureau of Labor Statistics, 2006). a)Do you expect

asked by Anonymous on June 18, 2008
67. ## Physics #48

An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is σ = 1.67 10-7 C/m2, and the plate separation is 1.35 10-2 m. How fast is the electron moving just before it reaches the

asked by Elizabeth on January 25, 2013
68. ## Physics

An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is σ = 1.67 10-7 C/m2, and the plate separation is 1.35 10-2 m. How fast is the electron moving just before it reaches the

asked by Jasmine on January 28, 2013
69. ## Physics

In a Milliken type experiment, two horizontal parallel plates are 1.0 cm apart. A sphere of mass 2.2 x 10^(-13) kg remains stationary when the potential difference between the plates is 350V with the upper plate is negative. How much excess or deficit of

asked by KnowsNothing on July 23, 2012
70. ## Math

I have no idea how to solve this problem. Any help would be appreciated. Suppose rayBC bisects angleABE, and D is the interior of angleABC. If the measure of angleCBD=28° and the measure of angleABE=136°, find the measure of angleABD. Answer Choices: a.

asked by Anonymous on September 4, 2009
71. ## Math

Solve 2x-y+3z=8 x-6y-z=0 -6x+3y-9z=24 Did you notice that your third equation has the same normal as the third one? So visually I see two parallel planes intersected by third non-parallel plane, namely the second equation. So solve equations 1 and 2, and

asked by Lily on April 21, 2007
72. ## science

1a)A block of mass=100kg is tied to a donkey that moves with constant acceleration of 20cm/s^2 up a 30 degree incline. What is the force with which the donkey pulls on the block parallel to the incline? the coefficient of kinetic friction between the

asked by Anonymous on May 5, 2010
73. ## physics - DAMON

a +35x10^-6 C point charge is placed 32 cm from an identical +32x10^-6 C charge. how much work would be required to move a +50.0x10^-6 C test charge from a point midway between them to a point 12 cm closer to either of the charges? so can you show me the

asked by leess on February 24, 2008
74. ## math

speakeasy company offers customers a choice between 3 schemes:1st,a monthly charge of \$15 + 5cents/ min.2nd,a monthly charge of \$5 for the line rental +20 cents/min,3rd a(pay as you go) charge of 35cents/min with no monthly line rental charge.

asked by rima on May 10, 2010
75. ## Physics

Explain how rubbin fur on an ebonite rod produces a charge on the rod. What chrage is produced in the rod? I understand the question, but how am I to know if it will have a positive or negative charge? Also, I don't quite understand how you charge

asked by Lizzie on December 28, 2008
76. ## Physics

A square plate of copper with 50 cm sides has no net charge and is placed in a region of uniform electric field of 80.0 kN/C directed perpendicular to the plate. Find (a) thr charge density at each face of the plate and (b) the total charge on each face.

asked by sandhu on September 18, 2009
77. ## physics

A mettalic sphere of radius a carries a charge Q. It is brought in contact with an uncharged sphere of radius b . what will be the charge on the first sphere. My work I eliminated 2 options by substitution and realised that it won't be their average as

asked by Anonymous on March 1, 2016
78. ## Physics

A uranium nucleus (mass 238 u, charge 92e) decays, emitting an alpha particle (mass 4 u, charge 2e) and leaving a thorium nucleus (mass 234 u, charge 90e). At the instant the alpha particle leaves the nucleus, the centers of the two are 5.5fm apart and

asked by Nguyen Nguyen on February 26, 2015
79. ## As physics

The current carriers in a piece of semiconducting material have a charge of 1.6 x 10^-19C. Calculate the number of charge carriers entering the material per second when the current is 3 microamps so 3 x 10^-6 amps. ? Please help and do it step by step all

asked by cylinder on December 12, 2017
80. ## physics As

The current carriers in a piece of semiconducting material have a charge of 1.6 x 10^-19C. Calculate the number of charge carriers entering the material per second when the current is 3 microamps so 3 x 10^-6 amps. ? Please help and do it step by step all

asked by cylinder on December 14, 2017
81. ## Phyiscs - due at 11PM EST!!

Two identical conducting spheres, fixed in place, attract each other with a force of 0.114 N when their center to center separation is 45.00 cm. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres have a net

asked by Bill on April 12, 2011

In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force on the charge at corner A point along the vertical direction. What charge (magnitude and algebraic sign) must be placed at the empty corner?

asked by Anonymous on January 12, 2013
83. ## physics

A charge of -5.02 μC is traveling at a speed of 8.86 × 106 m/s in a region of space where there is a magnetic field. The angle between the velocity of the charge and the field is 54.6o. A force of magnitude7.85 × 10-3 N acts on the charge. What is the

asked by Lily on May 17, 2016
84. ## Physics

A charge of -6.17 μC is traveling at a speed of 5.47 × 106 m/s in a region of space where there is a magnetic field. The angle between the velocity of the charge and the field is 53.2o. A force of magnitude5.37 × 10-3 N acts on the charge. What is the

asked by Amelia on March 11, 2018
85. ## Physics

A charge of -5.02 μC is traveling at a speed of 8.86 × 106 m/s in a region of space where there is a magnetic field. The angle between the velocity of the charge and the field is 54.6o. A force of magnitude7.85 × 10-3 N acts on the charge. What is the

asked by Matthew on May 17, 2016

In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force on the charge at corner A point along the vertical direction. What charge (magnitude and algebraic sign) must be placed at the empty corner?

asked by Anonymous on January 10, 2013
87. ## physics

a +35x10^-6 C point charge is placed 32 cm from an identical +32x10^-6 C charge. how much work would be required to move a +50.0x10^-6 C test charge from a point midway between them to a point 12 cm closer to either of the charges? please show work.

asked by leesa on February 22, 2008
88. ## physics

In the rectangle in the drawing, a charge is to be placed at the empty corner to make the net force on the charge at corner A point along the vertical direction. What charge (magnitude and algebraic sign) must be placed at the empty corner?

89. ## physics

A charged capacitor (AB) carries on its plate A a charge Q=-1.2mC a) What is the charge carried by plate B. b) Is the voltage U (AB)=V (A)-V (B) positive or negative. c) The plates A and B are connected to the terminals of a resistance R: the capacitor

asked by sandra on April 14, 2016
90. ## physics

A uniform electric field of 500. V/m is directed in the negative x direction. A +15ìC charge moves from the origin to the point (x,y) = (20.0 cm, 50.0 cm). (a) what was the change in the potential energy of this charge? (b) Through what potential

asked by frank on September 8, 2007
91. ## science

Large craters are visible on the moon but not common on the earth's surface. Which of the following is the beady explanation of why large craters are not evident in the earth's surface in photos taken from space. A.three quarters of the earth's surface is

asked by Tessy on January 23, 2016
92. ## Physics

The answer is in parenthesis, but I just don't get it. 11. The large window air conditioner in Anita Breeze's room draws 11 amps of current. Determine the quantity of charge that will pass through Anita's window AC in the next 10 minutes. (6600 C)

93. ## Physics Superpostion Principle

four charged particles are placed so that each particle is at the corner of a square. the sides of the square are 15 cm. the charge at the upper left corner is +3.0 microcoulombs, the charge at the upper right corner is -6.0 microcoulombs, the charge at

asked by Kelsi on May 16, 2012
94. ## Precalculus

A rancher wishes to fence in a rectangular plot of land and divide it into two corrals with a fence parallel to two of the sides. If she has 300 yd of fencing available, how large an area can the plot have? This is what I have so far: A=xy 300=2x+3y

asked by Serena on April 15, 2015
95. ## Physics Electrical help thanks

Thank you ! At some instant the velocity components of an electron moving between two charged parallel plates are vx = 1.3 105 m/s and vy = 3.6 103 m/s. Suppose that the electric field between the plates is given by E = (120 N/C) j. (a) What is the

asked by Jennifer on February 15, 2007
96. ## physics

A charge of +24.3 µC is located at (4.40 m, 6.02 m) , and a charge of -13.1 µC is located at (-4.50 m, 6.75 m) . What charge must be located at (2.23 m, -3.01 m) if the electric potential is to be zero at the origin? ANyone have any advice? Find the

asked by jay on July 9, 2007

A charge is to be placed at the empty corner to make the net force at corner A point along the vertical direction. What charge (magnitude and algebraic sign) must be placed at the empty corner if the three charges have the same charge of +7.63 μC?

asked by joane on October 15, 2012
98. ## physics

A charged capacitor AB carries on its plate A a charge Q=-1.2mC What is the charge carried by plate B. Is the voltage U(AB)=V(A)-V(B) positive or negative, The plates A and B are connected to the terminals of a resistance R: the capacitor gets discharged.

asked by sandra on April 13, 2016
99. ## Physics 30

A test charge of 5.0x10^-6 C is moved 2.0 cm through an electric force of 6.0 x 10^-7 N . What is the change in evergy of the test charge? What is the change in voltage on the charge? Help

asked by Martin on May 19, 2012
100. ## Physics

A 10 charge sits at a point in space where the magnitude of the electric field is 1900 .What will the magnitude of the field be if the 10 charge is replaced by a 20 charge?

asked by Frustrated on March 29, 2012