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February 9, 2016

Search: A charge of -3.50 nC..

Number of results: 4,930

physics
An object (with charge -4.2 µC and mass 0.024 kg) hovers at rest above the ground, its weight being held up by a uniform electric field.(a) Find the size and direction of this electric field.(b) If the electric charge on the object is quadrupled while its mass remains the same...
February 4, 2014 by John

physics
a) You need to move a test particle across a floor. Given source that has a charge of q = 3e, What is the displacement between the source and the particle if you need the particle to travel 2.5m in t = 2.5s? Note: the source emits this charge only the INSTANT you pull the ...
July 9, 2012 by Anonymous

6. If 4.0 × 1018 J of work done on a point charge changes its electric potential difference by 25.0 V, then what is the magnitude of the charge? (Points : 1) 1.6 × 101^9 C 4.0 × 101^9 C 1.6 × 101^8 C 4.0 × 101^8 C 7. Two parallel plates have an electric field strength between...
May 1, 2014 by Jacob

Physics repost
A magnetic field has a magnitude of 1.2 10-3 T, and an electric field has a magnitude of 5.9 103 N/C. Both fields point in the same direction. A positive 1.8 µC charge moves at a speed of 2.9 106 m/s in a direction that is perpendicular to both fields. Determine the magnitude ...
September 29, 2007 by Mary

Physics Gauss
A long, thin straight wire with linear charge density -λ runs down the center of a thin, hollow metal cylinder of radius R. The cylinder has a net linear charge density 2λ. Assume λ is positive. Find expressions for the electric field at the following locations...
September 13, 2010 by David D.

Math Problem
Company A rents copiers for a monthly charge of \$240 plus 8 cents per copy. Company B rents copiers for a monthly charge of \$480 pluse 4 cents per copy. What is the number of copies above which Company A's charges are the higher of the two? Please Help and Thank You
April 18, 2012 by Anonymous

physics
I have these problems that I keep doing and keep missing. If someone could please help me with what I am doing wrong! Two charges, -25 µC and +15 µC, are fixed in place and separated by 3.4 m. (a) At what spot along a line through the charges is the net electric field zero? ...
February 2, 2010 by jennifer

Biology
J.J. Thomson's experiments supported the existence of a particle that deflected away from a negative charge and toward a positive charge. Ernest Rutherford found that when positive particles were fired at gold foil, some of the particles deflected rather than passing straight...
June 24, 2015 by Rafa

science
what is the charge on a copper nucleus The atomic number is the number of protons in the nucleus and protons have a charge of +1. What is the atomic number of copper? Look on the periodic table. If you don't have one at home, here is one on the web. www.webelements.com yikes ...
October 25, 2006 by vannesa

physics
By "see" I meant that I had checked my answer on the internet to see if I was correct in thinking that multipying the charge of an electron, charge of a proton, and k would yield the electrical force between an electron and proton. My answer was 23.10 x 10^-9 which seemed ...
March 29, 2008 by Karla

Physics
Deaths associated with lightning in South Africa are about four times higher than the global average. A typical thundercloud maybe at a potential of 1,2 times 10^8V and the thunder strike may result in a charge transfer of 20C. CALCULATE THE CURRENT GENERATED DURING THE ABOVE ...
October 11, 2010 by Orlando

Physics
The same voltage is applied between the plates of two different capacitors. When used with capacitor A, this voltage causes the capacitor to store 17 μC of charge and 5.7 x 10^-5 J of energy. When used with capacitor B, which has a capacitance of 6.9 μF, this voltage...
February 21, 2015 by e

chemistry
Using the half-reaction method, balance the redox reaction below. Show your work; partial credit will be given. I- + Br2 → IO3- + Br- Write the reduction and oxidation half-reactions. Balance them for atoms. Balance each of the half-reactions for charge. Multiply the ...
April 27, 2012 by Anonymous

Physics - Charge on pith balls
Two pith balls equally charged and each with a mass of 1.5. White one ball is suspended by a thread, the other is brought close to it and a state of equilibrium is reached. In that situation, the two balls are separated by 2.6cm and the thread attached to the suspended ball ...
October 18, 2010 by Anonymous

Physics
A charge −Q is located at x=−l/2 and a charge +Q is located at x=l/2. Thus the separation between the two charges is l. (b)What is E(x) as a function of x for x>l/2? Express your answer in terms of, if necessary, Q, l, x and the constant ϵ0 (if needed, ...
February 21, 2013 by Anonymous

physics
Two small plastic balls hang from threads of negligible mass. Each ball has a mass of 0.14g and a charge of magnitude q. the balls are attracted to each other. When in equilibrium, the balls are separated by a distance of 2.05cm and the threads attached to the balls make an ...
January 18, 2013 by stoic-rider77

Physics
Two pith balls below each have a mass of 5.0 g and equal charge. One pith ball is suspended by an insulating thread. The other is brought to x = 4.0 cm from the suspended ball. The suspended ball is now hanging with the thread forming an angle of 30.0° with the vertical. The ...

science/chemistry
HELP,HELP,HELP,HELP How can you tell that cobalt(II) iodide is binary ionic compound formed by a transition metal with more than ionic charge? Thanx in Advance form jeff Cobalt(II) chloride tells you it is binary (composed of two different atoms), cobalt and iodine; compare ...
January 5, 2007 by Jeff

Can someone please check over my answers? I'm not sure about them, especially part c. A small boat can be bought for \$3,000 cash or on the installment plan by paying \$300 down and \$108 a month for 30 months. a) What is the installment price of the boat? \$3,540 b) What is the ...
January 14, 2008 by Tracy

Physics
A long, thin rod (length = 4.0 m) lies along the x axis, with its midpoint at the origin. In a vacuum, a +5.0 µC point charge is fixed to one end of the rod, while a -5.0 µC point charge is fixed to the other end. Everywhere in the x, y plane there is a constant external ...
January 26, 2013 by Amy

Physics
A long, thin rod (length = 4.0 m) lies along the x axis, with its midpoint at the origin. In a vacuum, a +5.0 µC point charge is fixed to one end of the rod, while a -5.0 µC point charge is fixed to the other end. Everywhere in the x, y plane there is a constant external ...
January 26, 2013 by Amy

Astronomy
Black holes can be completely described by which three parameters? -angular momentum, spin, and electric charge -angular momentum, density, and radius -mass, angular momentum, and electric charge -mass, angular momentum, and radius
March 16, 2013 by qwerty

algebra
your internet provider offers two different plans. one plan costs \$0.02 per email plus a \$9 monthly service charge. the other plan costs \$0.05 per email with no service charge. write a system of equations to model the cost of the two internet plans.
September 18, 2012 by taylor

Justin
Four identical metallic spheres with charges of +2.2 µC, +8.2 µC, −4.6 µC, and −9.2 µC are placed on a piece of paper. The paper is lifted on all corners so that the spheres come into contact with each other simultaneously. The paper is then flattened so that the ...
August 19, 2013 by physics

physics
Four identical metallic spheres with charges of +2.2 µC, +8.2 µC, −4.6 µC, and −9.2 µC are placed on a piece of paper. The paper is lifted on all corners so that the spheres come into contact with each other simultaneously. The paper is then flattened so that the ...
August 20, 2013 by Justin

physics
An electrically neutral model airplane is flying in a horizontal circle on a 2.0-m guideline, which is nearly parallel to the ground. The line breaks when the kinetic energy of the plane is 50 J. Reconsider the same situation, except that now there is a point charge of +q on ...
February 14, 2013 by shaun

physics
Two charges, -37 µC and +3 µC, are fixed in place and separated by 2.8 m. (a) At what spot along a line through the charges is the net electric field zero? Locate this spot relative to the positive charge. (Hint: The spot does not necessarily lie between the two ...
January 23, 2007 by Ann

Science
Which statement about subatomic particles is NOT true? A.) Protons and neutrons have almost the same mass. B.) Protons and electrons have opposite charges. C.) Unlike protons and electrons, neutrons have no charge. D.) Protons and neutrons have the same charge.
December 18, 2011 by Vanessa

Chemistry
Which of the following increase the melting point of an ionic compound? decreased charge on the ions increased size of the ions increased charge on the ions decreased size of the ions increased amount of the compound
April 28, 2010 by Megan

Physics
A point charge Q1=-2 microcoulomb is located at x=0, and a point charge Q2=+8 microcoulomb, is placed at x=-0.5 on the x axis of a cartesian coordinate system.The goal of this problem is to determine the electric field,at various points along the x axis. a)What is electric ...
February 25, 2013 by Phy

Physics
The drawing shows a positive point charge +q1, a second point charge q2 that may be positive or negative, and a spot labeled P, all on the same straight line. The distance d between the two charges is the same as the distance between q1 and the spot P. With q2 present, the ...
September 6, 2013 by Sarah

Physics
Three point charges + q, -q and + q are placed at the vertices P, Q and R of an equilateral triangle. If F=1/4ðE q 2/ r2 where r is the side of the triangle, What is the force on charge at P due to charges at Q and R? It is along which direction.? Since one charge is +ve other...
September 1, 2011 by Prathiksha

Physics Capacitance
Three uncharged capacitors, X, Y, Z, each with capacitance of 12uF each are connected A---------[X]------[Y/Z]-----------B *Y&Z is parallel to each other* A potential difference of 9.0V is applied between points A and B. Explain why when the potential difference of 9.0V is ...
April 25, 2015 by Ariana

Physics
A long insulating wire has a uniform charge density 7nC/m and r=3m away from the wire A.) surface area of the side of the Gaussian surface B.) find total charge enclosed by the Gaussian surface C.) find total electric flux D.) use Guass's law to find the electric flux at r=3m
February 25, 2015 by Macy

Physics
In a lightning bolt, a large amount of charge flows during a time of 2.2 10-3 s. Assume that the bolt can be treated as a long, straight line of current. At a perpendicular distance of 28 m from the bolt, a magnetic field of 7.3 10-5 T is measured. How much charge has flowed ...
March 20, 2014 by Anonymous

physics. Can you check my answer?
Two spherical objects are separated by a distance of 2.41 x 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a result, each object...
February 11, 2009 by Jordan

Physics
1. The problem statement, all variables and given/known data A point charge is placed at each corner of a square with side length a. The charges all have the same magnitude q. Two of the charges are positive and two are negative, as shown in the following figure. The two ...
January 22, 2012 by Eddie

Physics
A circuit with a capacitor took .128s to discharge from its max charge Qmax to half of that max charge once the battery was removed. In this series circuit there also is one resistor with 100 G(ohm symbol). The voltage drop is 12V across the battery. What is the time constant ...
April 3, 2008 by Andrea

Mary's yard is a mess. She needs to hire someone to prune her trees and shrubs. A landscaping service she calls quotes her a price of \$15 consultation fee plus \$8 an hour for the actual work. Mary's neighbor has offered has offered to help her out. She doesn't charge a ...
February 7, 2013 by Bell

An insulating sphere of mass m and positive charge q is attached to a spring with length h and spring constant k_s and is at equilibrium. An infinitely long wire with positive linear charge density lamda is placed a distance l away from the charged mass at equilibrium as shown...
November 9, 2013 by nisha

Dr Bob
On preparation of a solution of protein, you attempted to dissolve the substance in water, but a suspension resulted. Drop-wise adition of NaOH solution, with stirring, eliminated the suspension. Addition of acid to the original suspension had no effect. Think about how pH ...
January 26, 2009 by Andrew

Ion Charge & Formulas of Ionic Compounds
Can you please take a look at my questions. Thank you very much. 1.classify the law of definite proportions. In specific proportions, A type of compound always contains the same elements. Is this good? Any other info would be greatly appreciated. 2.how do u distinguish the ...
April 20, 2010 by Sara

science
There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0675 N. Then, a thin conducting wire connects the spheres, redistributing the charge on ...
February 19, 2013 by Kels

science
There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0675 N. Then, a thin conducting wire connects the spheres, redistributing the charge on ...
February 19, 2013 by Kels

Physics
(a) calculate the energy in joules put out by a 9.0 V calculator battery that moves 3.0 C of charge through a handheld calculator after 1 hr of operation. (b) calculate the energy put out by a 12.0 V car battery that moves 1000 C of charge (as it may when starting the car's ...
May 10, 2010 by Nina

chemistry
How does an ionic bond form between zinc and oxygen? Zn has two electrons in its outside shell and wants to lose those two. Oxygen has six electrons in its outside shell and wants eight; therefore, oxygen takes the two electrons form Zn making the Zn with a +2 charge and ...
November 20, 2006 by carter

Economics
A television station is considering the sale of promotional DVDs. It can have the DVDs produced by one of two suppliers. Supplier A will charge the station a set-up fee of \$1,200 plus \$2 for each DVDs; supplier B has no set-up fee and will charge \$4 per DVD. The station ...
September 16, 2010 by Anonymous

physics
A charge of +0.5 C is moved from a position where the electric potential is 10 V to a position where the electric potential is 70 V. What is the the change in potential energy of the charge associated with this change in position?
April 28, 2014 by Amanda

Physics
Two charges are placed between the plates of a parallel plate capacitor. One charge is +q1 and the other is q2= +5.00x10^-6 C . The charge per unit area on each plate has a magnitude of sigma=1.30 x 10^-4 C/m^2. The force on q1 due to q2 equals the force on q1 due to the ...
February 6, 2008 by Trevor

Physics
Two charges are placed between the plates of a parallel plate capacitor. One charge is +q1 and the other is q2= +5.00x10^-6 C . The charge per unit area on each plate has a magnitude of sigma=1.30 x 10^-4 C/m^2. The force on q1 due to q2 equals the force on q1 due to the ...
February 6, 2008 by Trevor

An insulating sphere of mass m and positive charge q is attached to a spring with length h and spring constant k_s and is at equilibrium. An infinitely long wire with positive linear charge density lamda is placed a distance l away from the charged mass at equilibrium as shown...
November 8, 2013 by nisha

math
A company rents its care for a daily fee, plus an additional charge per miles driven. Trip one is 4 days, 450 miles, and cost \$244.50 for the rental. Trip two is 3 days, 200 miles and cost 149.00 for the rental. Find the daily fee, and find the mileage charge. I don't know how...
December 5, 2014 by Maria

physics
WHICH ONE OF THE FOLLOWING STATEMENTS BEST EXPLAINS WHY SEMICONDUCTORS IN TRANSISTORS ARE DOPED? A) doping converts the semiconducting material into a metallic material like copper. b) doping makes the charge carriers mobile. c) doping makes the charge carriers immobile. d) ...
May 1, 2010 by seema

physics
A plastic rod has been bent into a circle of radius R = 8.80 cm. It has a charge Q1 = +4.60 pC uniformly distributed along one-quarter of its circumference and a charge Q2 = -6Q1 uniformly distributed along the rest of the circumference. Take V = 0 at infinity. (a) What is the...
April 4, 2013 by j

Physics
An infinite,insulating sheet has a surface charge density 3.14C/m^2 the height is 12km A.) find the surface area of the Gaussian surface B.) find the total charge C.) find the total electric flux D.) use Guass's law to find the electric field at a height h=12km above the ...
February 25, 2015 by Macy

Physics
An object with a charge of -4.4 uC and a mass of 1.4×10^−2 kg experiences an upward electric force, due to a uniform electric field, equal in magnitude to its weight. Find the magnitude of the electric field. Find the direction of the electric field. If the the electric ...
January 23, 2012 by Cooper

calculus
A competing technology uses a photovoltaic cell to charge a battery which can then be used to power a LED light. To compare these technologies, we make some reasonable assumptions. We assume the solar cell is 10 cm on a side, and that it has an efficiency of 15%. We assume the...
December 18, 2013 by Danny Simone

chemistry
A competing technology uses a photovoltaic cell to charge a battery which can then be used to power a LED light. To compare these technologies, we make some reasonable assumptions. We assume the solar cell is 10 cm on a side, and that it has an efficiency of 15%. We assume the...
December 18, 2013 by Danny Simone

physic
1. A surface charge can be produced on insulators by a. grounding b. induction c. polarization d. contact 2. Unlike insulators, conductors can be charged by a. grouding b. induction c. polarization d. contact The easy way to charge an insulator is by contact. Insulators cannot...
March 29, 2007 by Jannie

Physics
A charge of -3.17 μC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.115 m). The charges on the circle are -3.96 μC at the position due north and +5.03 μC at the position due east. What is the ...
January 27, 2016 by Abby

Physics (help steve)
Exact solutions for many-body problems are rarely encountered in physics. The following problem deals with a non-trivial motion of four charges. Due to the symmetry of the problem it is possible to determine the trajectories of the charges analytically. Four identical ...
July 9, 2013 by Kay

SCIENCE,PHYSICS
Exact solutions for many-body problems are rarely encountered in physics. The following problem deals with a non-trivial motion of four charges. Due to the symmetry of the problem it is possible to determine the trajectories of the charges analytically. Four identical ...
July 10, 2013 by GT

You know that a cetrain electroscope is charged because the foil extends when there is nothing near to influence it. when a balloon rubbed with fur is brought near (but not near to change the net charge on the electroscope), the gold foil is seen to move slightly downward. Is ...
January 15, 2009 by jen

chem
how many protons, nnutrons, atomic mass, mass number, and charge to each of the following have? sodium atom fluorine ion stannic ion for sodium i have protons=11 electrons=11 neutral charge how do i find the number of neutrons cause im pretty sure mass number is protons plus ...
January 7, 2009 by lyne

physics
A point charge of 2.4 μC is located at the center of a spherical shell of radius 17 cm, which has a charge −2.4 μC uniformly distributed on its surface. Given: ke = 8.98755 × 109 Nm2/C2 . a)Find the electric field for all points outside the spherical shell. b)...
September 19, 2011 by alex

Physics
One gram of palladium has 5.66×10^21 atoms, and each palladium atom has 46 electrons. How many electrons are contained in 7.00g of palladium? The elemental charge is1.6×10^−19C. Answer in units of electrons. The answer is 1.82252x10^24 for Part A. i need help with part B...
February 8, 2015 by Danny

physics
One gram of palladium has 5.66×10^21 atoms, and each palladium atom has 46 electrons. How many electrons are contained in 7.00g of palladium? The elemental charge is1.6×10^−19C. Answer in units of electrons. The answer is 1.82252x10^24 for Part A. i need help with part B...
February 8, 2015 by Danny

A spherical capacitor consists of a spherical conducting shell of radius b and charge -Q concentric with a smaller conducting sphere of radius a and charge +Q . Enter an expression for the capacitance of this device in terms of Coulomb's Constnat K_e (just type "k") and the ...
November 6, 2013 by asha

Economics
Suppose that a movie theater owner faces the demand curve given by P=10-.001Q where P is the price of a ticket in dollars and Q is the number of tickets sold per week. Suppose that all the cost associated with the theater other than film costs do not vary with the number of ...

Algebra
You are choosing between two long distance telephone plans. One plan has a monthly fee of \$15 with a charge of \$.05 per minute. The other plans has a monthly fee of \$5 with a charge of \$.07 per minute. For how many minutes of long-distance calls with the cost for the two plans...
February 2, 2012 by lolo

Science
Use the electron theory to explain how one object can be negatively charged and another can be positively charged. help If electrons are negative, removing them will leave a net positive charge (net meaning fewer negative electrons than postivite protons). Remember, in normal ...
November 29, 2006 by Nicka

Physics
q1= 25 pC q2 = -75 pC A) calculate the magnitude of the electric force between the two charges B) Is the force attractive or repulsive? C) calculate the magnitude and direction of E1 *( there is an arrow above E1) , the electric field at the orgin due to charge q1. D) ...
April 12, 2011 by Angela Britt

PHYSICS
Two point charges, 6.0 µC and -2.0 µC, are placed 6.0 cm apart on the x axis, such that the -2.0 µC charge is at x = 0 and the 6.0 µC charge is at x = 6.0 cm. (a) At what point(s) along the x axis is the electric field zero? (If there is no point where E = 0 in a region, enter...
February 24, 2010 by SHUBHANGI

Pre Calc
A plumber charges \$40 per hour for labor with a minimum labor charge of \$30. For example, if she does her repairs in only 0.2 hours, then \$40*0.2=\$8, which is less than the minimum, so she would charge \$30 for labor. We will assume she can repair any problem in one day – a ...

physics
I want to understand this concept more than anything so advice as well as hints to solve this problem are greatly appreciated. 26. Two fixed charges, -4.0E-6 C and -5.0E-6 C, are separated by a certain distance. a) is the net electric field at a location halfway between the ...
July 5, 2011 by Sarah (C)

Physics
There are four charges, each with a magnitude of 2.65 microcoulombs. Two are positive and two are negative. The charges are fixed to the corners of a 0.408-m square, one to a corner, in such a way that the net force on any charge is directed toward the center of the square. ...
July 18, 2012 by JJ

College Physics
A charged particle is hanging from the side of a wall by means of an uncharged string. The wall has a negative charge producing a horizontal electric field. The particle has a mass of .01 Kg. and charge of -80(micro)C and is suspended by a string .3m long. The electric force ...

physics
he question is: A spherical capacitor contains a solid spherical conductor of radius 0.5mm with a charge of 7.4 micro coulombs, surrounded by a dielectric material with er = 1.8 out to a radius of 1.2mm, then an outer spherical non-conducting shell, with variable charge per ...
May 1, 2011 by Josh

physics
If the field strength is E = 9 V/m a distance of 1 m from the charge, what is the field strength E a distance of 3 m from the charge?
February 4, 2014 by jrfannin

Physics
Four capacitors are connected in series with a battery, as in the figure below, where C1 = 3.24 µF, C2 = 6.11 µF, C3 = 12.1 µF, C4 = 25.0 µF, V = 18.4 V. (a) Calculate the capacitance of the equivalent capacitor. µF (b) Compute the charge on C3. µC (c) Find the voltage drop ...
September 17, 2010 by Max

Physics
Two electrostatic point charges of +60.0 uC and +50.c uC exert a repulsive force on each other of 175 N. What is the distance between the two charges? So let's say I use Coulomb's law would the repulsion of 175 N be considered the equivalent of the electric force? Can someone ...
January 17, 2011 by Pablo

Chemistry
Write the balanced half reaction for the reduction and oxidation reactions for the redox reaction: 2 Mg (s) + O2 (g) -> 2 MgO (s) Notice: for this question you do not have to include a charge of zero and you do not have to include the states. Below is an example of the form...
January 13, 2015 by Meghan

physics
1. Suppose that the strength of the electric field about an isolated point charge has a certain value at a distance of 1 m. How will the electric field strength compare at a distance of 2 m from the point charge? I know it's At twice the distance the field strength will be 1/4...
July 14, 2010 by anonymous

Physics-Gauss' Law, hard
Thank you Damon for answering my first questions fast and accurately. Do you or anybody else know how to do these harder Gauss' Law Problems? 1. A solid metal sphere of radius R has charge +2Q. A hollow spherical shell of radius 3R placed concentric with the first sphere has ...
March 23, 2008 by Bobby

physics
In the Millikan oil drop experiment, an atomizer (a sprayer with a fine nozzle) is used to introduce many tiny droplets of oil between two oppositely charged parallel metal plates. Some of the droplets pick up one or more excess electrons. The charge on the plates is adjusted ...
January 24, 2010 by James

physics
charge q1=+4.00nc is located at x=0.200m, and q2 =+5.00nc is at x=-0.300 m. what are the magnitude and directionof the net force exerted by these two charges ona negative point charge q3 = -0.600 nc placed at the origin ? I think I need to find the F of q1q3 then find the F of...
February 14, 2013 by yanis

algebra
Company A rents copiers for a monthly charge of \$360 plus 12 cents per copy. Company B rents copiers for a monthly charge of \$720 plus 6 cents per copy. What is the number of copies above which Company A's charges are the higher of the two?
July 20, 2013 by anna

math
Make a table to answer Problems 27–28. (3-5) Two shipping companies charge different amounts to mail packages. Company A charges an initial \$5 fee, and each pound shipped is an additional \$1. Company B charges an initial \$3 fee, and \$1.50 for each pound shipped. 27. At what ...
November 19, 2011 by ducky

Physics
Two circular metal disc each of 3.00 cm diamter are 1.5 mm apart make a capacitor. A)What is the capacitance of this capacitor if it is in series to a 25 V battery? B)What is the magnitude charge developing on each plate? C)While the batter remains connected, the plates are ...
March 28, 2012 by Tim Cooper

Physics
There is a figure with a +2.0 UC charge on the left and a -2.0 uC charge on the right. P is in the center between the two charges. They are 5.0 cm apart. 1) Find the electric field 5.0 cm to the left of P. 2) Find the electric filed 5.0 cm directly above P. 3) Find the ...
August 19, 2009 by Sammy

Calculus Max Profit
To make pom poms in our school colors, we will have expenses of \$100 to rent the Acme PomPom Plant, and then \$0.25 per pom pom in materials. We believe that we can sell 500 pom poms if we charge \$1.50. Assume the number sold is a linear function of the price. How much should ...
August 2, 2012 by Ronny

biology
Imagine you and a friend have robbed the Union Market. You are caught speeding out of the parking lot and are promptly apprehended by Campus Security. A scuffle ensues and you are both charged with resisting arrest. They isolate the two of you so that you may be questioned ...
October 9, 2008 by Vishnu

Physics
A 11.0-µF capacitor and a 50.0-µF capacitor are charged by being connected across separate 55.0-V batteries. (a) Determine the resulting charge on each capacitor. (b) The capacitors are then disconnected from their batteries and connected to each other, with each negative ...
September 19, 2015 by Nick

Algebra
Mary’s yard is a mess. She needs to hire someone to prune her trees and shrubs. A landscaping service she calls quotes her a price of \$15 consultation fee plus \$8 an hour for the actual work. Mary’s neighbor has offered to help her out. She doesn’t charge a consultation fee, ...
October 23, 2013 by Faith

Physics
Consider the limit of large distances, where a finite charged rod is observed at a distance that is very large when compared to the length of the rod. In this situation, the electric field best resembled that of a ... point charge ... it goes like r^-2 infinite line ... it ...
February 14, 2010 by Sandra

Physics - Help!
A television set shoots out a beam of electrons. The beam current is 10E-6Amp (10macroAmp. How many electrons srike the TV screen each second? How much charge strike the screen in a minute? An ampere is a coulomb of electrons per second. If you divide that by the charge on one...
April 17, 2007 by Mazino

math
1. Calculate the interest charge on a \$5,000 balance with your current 16.5% annual interest rate. 2. Calculate the interest charge on a \$5,000 balance with the Visa Student Card’s annual interest rate of 10.8%.
May 7, 2013 by Mary

physics
A charge of -3.95C is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.135 m). The charges on the circle are -5.90C at the position due north and +4.27C at the position due east. What is (a) the magnitude and (b) ...
May 20, 2012 by BM

Physics
A charge of -3.00 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.120 m). The charges on the circle are -4.40 µC at the position due north and +5.00 µC at the position due east. What is the magnitude and ...