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October 1, 2014

Search: A charge of -3.50 nC..

Number of results: 4,345

physics
the negative charge distribution over the surface of two isolated spheres is depicted in the diagram. one of the spheres is made of copper and the other is of rubber. identify the sphere that depicts the charge distribution of copper and that of rubber. support the answer with...
December 1, 2010 by maria

physics
Two point charges are placed on the x axis. (Figure 1) The first charge, q1 = 8.00nC , is placed a distance 16.0m from the origin along the positive x axis; the second charge, q2 = 6.00nC , is placed a distance 9.00m from the origin along the negative x axis. Calculate the ...
February 4, 2014 by jrfannin

Physics
An alpha particle has a kinetic energy of about 5 MeV after they are far from the nucleus. Use this information to estimate the size of a nucleu by assuming that the alpha particle leaves the edge of the nucleus with zero kinetic energy and that the electrostatic potential ...
July 17, 2012 by Michael

Physics
Imagine a very large nonconducting plate that has a uniform surface charge density σ =1 μC/m2; it also shows a point charge Q = -3 μC at distance d = 0.3 m from the plate. Both are fixed in place. We choose the origin of an x-axis at Q. At what positive ...
September 19, 2012 by Katie

SCIENCE,PHYSICS
According to the legend, Zeus, the king of ancient Greek gods, had the power to create thunderbolts in his hands and throw them at his opponents. Suppose Zeus creates the thunderbolts by bringing his palms very close together and parallel to each other and then inducing equal ...
July 10, 2013 by GT

Electricity
if an electrically uncharged body is contacted by an electrically charged body,the uncharged body will? A)develop the opposite charge as the charged body. B)remain na neutrally charged body. C)develop the same charge as the charged body. D)neutralize the charged body. c
August 20, 2005 by angela

electrochemistry
I am soooo confused! I was given this PdCl4^2-(aq)+Cd(s)----Pd(s)+4Cl^-(aq)+Cd^2+ I am supposed to give the 1/2 reaction for The PdCl4^2- My teacher said you could figure out the charges on the atoms by, in PdCl4^2, taking the subscript and mult. by the superscript to get the ...
November 17, 2009 by Christie

Physics
Initially, both metal spheres are neutral. In a charging process, 1 1013 electrons are removed from one metal sphere and placed on a second sphere. Then the electrical poten- tial energy associated with the two spheres is found to be −0.061 J . The Coulomb constant is ...
February 16, 2010 by Jonathan

physics
a.What electric potential difference exists across a 5.2 F capacitor that has a charge of 2.1 10-3 C? how do i use uF and C into a formula to find answer?? b.An oil drop is negatively charged and weighs 8.5 10-15 N. The drop is suspended in an electric field intensity of 5.3 ...
February 5, 2008 by kailey

Physics?
In Rutherford's scattering experiments, alpha particles (charge = +2e) were fired at a gold foil. Consider an alpha particle, very far from the gold foil, with an initial kinetic energy of 2.0 MeV heading directly for a gold atom (charge +79e). The alpha particle will come to...
July 6, 2012 by David

physics
In Rutherford's scattering experiments, alpha particles (charge = +2e) were fired at a gold foil. Consider an alpha particle, very far from the gold foil, with an initial kinetic energy of 3.3 MeV heading directly for a gold atom (charge +79e). The alpha particle will come to ...
July 7, 2012 by mdave

Physics - Electric Potential
A charge of - 0.15 C is moved from a position where the electric potential is 13 V to a position where the electric potential is 60 V. What is the change in potential energy of the charge associated with this change in position?
April 1, 2013 by Danielle

physis
Three spiders are resting on the vertices of a triangular web. The sides of the triangular web have a length of a = 0.85 m, as depicted in the figure. Two of the spiders (S1 and S3) have +7.7 C charge, while the other (S2) has −7.7 C charge. a)What are the magnitude ...
January 12, 2014 by Jimmy

physis
Three spiders are resting on the vertices of a triangular web. The sides of the triangular web have a length of a = 0.85 m, as depicted in the figure. Two of the spiders (S1 and S3) have +7.7 C charge, while the other (S2) has −7.7 C charge. a)What are the magnitude ...
January 12, 2014 by Jimmy

Physics
(a) How much charge does a battery have to supply to a 5.0 uF capacitor to create a potential difference of 1.5 V across its plates? How much energy is stored in the capacitor in this case? (b) How much charge would the batter have to supply to store 1.0 J of energy in the ...
February 4, 2008 by J

math
You have just opened a new nightclub, Russ' Techno Pitstop, but are unsure of how high to set the cover charge (entrance fee). One week you charged $9 per guest and averaged 160 guests per night. The next week you charged $11 per guest and averaged 140 guests per night. (a) ...
August 27, 2012 by Bud

Physics
Consider three charges arranged as shown. The picture is three particles in a horizontal line. There charges are represented below in order A B C + + − the distance from A to B is 4.4 cm. The distance from B to C is 4.6 cm A=8.2 C B=4.5 C C=−4 C What is the ...
September 1, 2011 by Meridith

Physics
Please help! I've tried solving this with trig but I can't seem to figure out what I've been doing wrong. Two positive point charges, each of which has a charge of 2.3 10−9 C, are located at y = +0.60 m and y = −0.60 m. A)Find the magnitude of the resultant ...
April 9, 2013 by Alex

Physics - electric field intesity (check +help)
Points A and B are 13.0 apart. A charge of +8.0mu is placed at A and another charge at +5.0mu is placed at B. Point P i located 5.0cm from A and 12.0cm from B. What is the magnitude and direction of the electric field intensity at P? Ans: i got the magnitude as 2.9*10^, ...
December 4, 2010 by Farah

physics
An object with a charge of -4.5 micro C and a mass of 1.110−2 kg experiences an upward electric force, due to a uniform electric field, equal in magnitude to its weight. A) Find the magnitude of the electric field. B)Find the direction of the electric field. upward ...
January 27, 2012 by jazz

physics
what kind of force field surrounds a stationary electric charge? What additional field surrounds it when it moves? "what kind of force field surrounds a stationary electric charge?" Electric field. "What additional field surrounds it when it moves?" Magnetic field. THANK YOU ...
December 4, 2006 by amy

pre ap physics
A) A small cork with an excess charge of +9.0x10^-6 is placed 0.13 m from another cork, which carries a charge of −3.2x10^-6. What is the magnitude of the electric force between the corks? The Coulomb constant is 8.98755 10^9 N m^2/C^2. Answer in units of N B)Is this...
April 14, 2013 by keely

Physics
A charge of -3.00 C 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 -3.20 C at the position due north and +5.00 C at the position due east. What is the magnitude and ...
August 29, 2007 by Mary

Physics
A charge of -3.00 C 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 -3.20 C at the position due north and +5.00 C at the position due east. What is the magnitude and ...
September 1, 2007 by Mary

physics
A +50 micro coulomb and 30 micro coulomb charge are placed 50cm apart. a)what is the direction and magnitude of thee electric field at a point P, in between them, that is 10cm from the 30 micro coulomb charge? b)if an electron is placed at rest P, what will its acceleration be...
May 3, 2012 by phil

physics
A +50 micro coulomb and 30 micro coulomb charge are placed 50cm apart. a)what is the direction and magnitude of thee electric field at a point P, in between them, that is 10cm from the 30 micro coulomb charge? b)if an electron is placed at rest P, what will its acceleration be...
May 3, 2012 by phil

Physics
Can someone please explain the method to solving the following electrostatics problem? Thank you very much. Consider three charged sheets, A,B, and C. The sheets are parallel with A above B above C. On each sheet there is a surface charge of uniform density: 4 x 10^(-5) C/m^2...
August 29, 2014 by Ronald

Algebra
As Sales Manager for Montevideo Productions, Inc., you are planning to review the prices you charge clients for television advertisement development. You currently charge each client an hourly development fee of $2,600. With this pricing structure, the demand, measured by the ...
February 21, 2012 by Angel

Physics
A battery with an emf of 10.3 V and internal resistance of 1.03 Ω carries a positive current of 0.550 A from its negative terminal to its positive terminal. (a) How long is required for 1.05 C of charge to pass through the battery? t = Q/I = (1.05)/(.550) = 1.909sec (b) ...
July 7, 2014 by Brandi

Physics Questions
Can you please help me with some and check my answers? Thanxs! 3.Which is stronger, the electrical force between an electron and a proton or the gravitational force between these particles? -I got that the electrical force between an electron and a proton. 6.Two charges ...
October 14, 2007 by Soly

Physics
At a place directly below a thundercloud, the induced electric charge on the surface of the Earth is +1.0 X 〖10〗^(-7) coulomb per square meter of surface. How many singly charged positive ions per square meter does this represent? The number of atoms on the ...
February 1, 2010 by Josslyn

Science guys :)
hey guys a got a few problems i need help with im really desperate for help theyre due soon online :( 1.Suppose that a constant current of 89 mA flows in a conductor. Find the absolute value of the total charge that passes through the conductor in 3 minute(s). Charge = ______ ...
August 31, 2005 by Zach

Physics
A charge of -3.00 C is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.130 m). The charges on the circle are -4.00 C at the position due north and +5.00 C at the position due east. What is the magnitude and ...
September 21, 2007 by Mary

Mathematics
I really need help with these three questions. Thank You. 1. Calculate the finance charge and new balance using the previous balance method. Previous balance = $179.32 Annual rate = 16% Finance charge $ ? New purchases = $117.42 Payments/credits = $85.00 New balance = $ ? 2. ...
January 27, 2010 by Anonymous

physics
If three unequal capacitors, initially uncharged, are connected in series across a battery, which of the following statements is true? 1 The equivalent capacitance is greater than any of the individual capacitances. The capacitor with the smallest capacitance has the smallest ...
January 29, 2010 by Cal

English
I had to rewrite sentences so that there were no longer fragments are they correct? 1. The idea of a credit card first appeared in 1887, according to Lawrence M. Ausbel, author of Credit Cards, in the McGraw- Hill Encyclopedia of Economics. 2. Originally an imaginary concept...
September 5, 2010 by keisha

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 . The total electric field on the x axis can be written as E(x)=E(x)d^ (a) What is the direction d^ of the total electric field at any point on the x axis ...
February 25, 2013 by P

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 . The total electric field on the x axis can be written as E(x)=E(x)d^ (a) What is the direction d^ of the total electric field at any point on the x axis ...
February 27, 2013 by Anonymous

Physics
A charge of 1nC is added to a spherical soap bubble with a radius of 3.0cm. What is the electric field strength just outside of the bubble? What is the electric field strength just inside of the bubble? The field experienced by each charge in the skin of the bubble is the ...
October 11, 2013 by Winter

physics
You have a parallel plate capacitor (with air between its plates) which is attached to a voltage source until the capacitor is fully charged. (a)After detaching the capcitor from the voltage source, you move the capacitor's plates farther apart; which of the following will ...
March 20, 2012 by Rebecca

chemistry
Can someone please help me with these? Write formulas for the following compounds. copper (III) chlorate lead (II) nitrate Cu(ClO3)3 Pb(NO3)2 Do you know the polyatomic ions? Tell us what you don't understand about looking at the periodic table and doing these; perhaps we can ...
February 13, 2007 by Florencia

science
A 1.98 10-9 C charge has coordinates x = 0, y = −2.00; a 2.73 10-9 C charge has coordinates x = 3.00, y = 0; and a -4.95 10-9 C charge has coordinates x = 3.00, y = 4.00, where all distances are in cm. Determine magnitude and direction for the electric field at the ...
January 9, 2013 by algebra

Math
Your credit card has a balance of $1000 and an interest rate of 21%. Each month you make the minimum requirement of $20. During January 10 through February 9 billing period you pay the minimum required payment on january 25th. find the average daily balance, finance charge, ...
May 22, 2014 by Anonymous

Mathis
Cindy cellular phone service has a monthly charge of $32.99 but adds a service charge of $0.79 per minute for calls made out of her local service area. Cindy has budget herself $45 per month for using her cell phone. What is the maximum number of minutes per month that Cindy ...
August 21, 2013 by Haron

algorithm&pseudocode
write an algorithm for each of these two problems in pseudocode.(20 points each) Mrs. Smith is on a cruise to the Bahamas. On a rainy day, she decides to go to the casino bar and play blackjack. She pays a $5.00 cover charge to enter the casino bar. She plays at one table, ...
March 3, 2010 by hahn

Physics-Please help!
I don't want someone to do this for me-I'm just totally lost and don't even know where to start-I'm totally lost on this one- the earth is surrounded by an electric field with a strenth of 100 N/C at the surface. Its electric properties are the same as a point charge located ...
April 7, 2011 by Rafaela

Physics
If 500 J of work are required to carry a charged particle between two points with a potential difference of 40V, the magnitude of the charge on the particle is: a) 0.040 C b) 12.5 C c) 20C D) cannot be computed unless the path is give e) none of these My solution: I used the ...
March 12, 2007 by susane

physics
One particle has a mass of 3.38 x 10-3 kg and a charge of +7.76 C. A second particle has a mass of 8.46 x 10-3 kg and the same charge. The two particles are initially held in place and then released. The partcles fly apart, and when the separation between them is 0.159 m, the...
March 4, 2009 by sara

Physics-Charges
A wall has a negative charge distribution producing a uniform horizontal electric field. A small plastic ball of mass 0.0261 kg, carrying charge of −102 μC, is suspended by an uncharged, nonconducting thread 0.369 m long. The thread is attached to the wall and the ...
March 7, 2012 by Joila

biology
WHAT CHARGE ARE PROTONS
September 7, 2010 by ME

physics
what is the charge of +11mC
September 21, 2010 by john

chem8th
The charge of an electron is a. -2. b.-1. c.0. d.+1.
November 4, 2013 by bigurl1.4

physics
Two point charges, q1 and q2, are placed 0.30 m apart on the x-axis, as shown in the figure above. Charge q1 has a value of 3.0 x 109 C. The net electric field at point P is zero Q: Calculate the magnitude of charge q2. Q: Calculate the magnitude of the electric force on q2 ...
February 23, 2012 by Kayberlynn

Physics
Hi, i need help on the following questions. Thank you. 1) The potential at location A is 441 V. A positively charged particle is released there from rest and arrives at location B with a speed vB. The potential at location C is 805 V, and when released from rest from this spot...
September 19, 2006 by Kevin

physics
There's a problem my professor assigned, but I'm not sure which equation/process I should use to solve it. Please help. Two particles having charges of 0.420nC and 15.1nC are separated by a distance of 1.50m. At what point along the line (in m from the particle with .420nC ...
February 2, 2010 by Nicole

physics
please check these for me: If atmospheric refraction did not occur, how would the apparent time of sunrise and sunset be changed? a. both would be later b. both would be earlier c. sunrise would be later, and sunset would be earlier d. sunrise would be earlier, and sunset ...
March 12, 2009 by physics

chem again
One more question- how do I balance this half-reaction in terms of atoms? MnO4^-(aq) -> MnO2 (s) i can't balance the oxygen I have no idea! Here is how to do it. It isn't the easiest method (there are easier ones) but this covers areas that you need to know. And this MUST ...
October 19, 2006 by Dan

physics
A 9 V battery is connected in series with a 100 Ω resistor and 12F capacitor. The capacitor is initially uncharged. What is the capacitive time constant of the circuit? How much charge q(t) is in the capacitor after two time constants?. What is the limiting value of the...
March 8, 2012 by Anonymous

Physics
The figure below shows two pint charges, each of -2Q, fixed on the y-axis at y = +a and at y = -a . A third points charge -Q is placed on the x-axis at x = 2a . Express all algebraic answers in terms of Q, a, and fundamental constants. (a) What is the net force (magnitude and ...
September 5, 2010 by David

physics
Three point charges, q1, q2, and q3, lie along the x-axis at x=0, x=3 cm, and x=5 cm, respectively. Calculate the magnitude and direction of the electric force on each of the three points when q1=+6.0 muC, q2=+1.5 muC, and q3=-2.0 muC. I would add the forces. Watch direction. ...
April 11, 2007 by Mischa

PHYSICS
In the early 1900s, Robert Millikan used small charged droplets of oil, suspended in an electric field, to make the first quantitative measurements of the electrons charge. A 0.67-um-diameter droplet of oil, having a charge of +e, is suspended in midair between two horizontal...
March 6, 2010 by JOTHEY

Physical Science
Need help with these questions: 1.When a calcium atom forms an ion, it loses two electrons. What is the electrical charge of the calcium ion? A.-2 B.-1 C.+2 D.+1 2.Which particle builds a static electrical charge when it is transferred from one object to the other? A.proton B....
May 22, 2009 by mysterychicken

Physics 221
Two fixed charges -4.0 C and -5.0 C, are separated a certain distance. a) Is the net electric field at a location halfway between the two charges: 1) directed toward the -4.0 C charge 2) Zero 3) directed toward the -5.0 C charge b) If the charges are separated by 20 cm, ...
December 30, 2013 by Jamaal

science
A small ball with a mass of 30.0 g and a charge of −0.200 μC is suspended from the ceiling by a string. The ball hangs at a distance of 5.00 cm above an insulating floor. If a second small ball with a mass of 50.0 g and a charge of 0.400 μC is rolled directly ...
September 17, 2012 by alia

physics
A small ball with a mass of 30.0 g and a charge of −0.200 μC is suspended from the ceiling by a string. The ball hangs at a distance of 5.00 cm above an insulating floor. If a second small ball with a mass of 50.0 g and a charge of 0.400 μC is rolled directly ...
September 17, 2012 by alia

chemistry
Why is the formal charge on B in BF4- is 1?
December 4, 2007 by Km

english
Which of the craftsmen is in charge of the rehearsals?
November 17, 2008 by jake

Physics
How many electrons make up a charge of -30.0 C?
May 12, 2010 by Laila

CHEM
what is the charge of a PHOSPITE ? and how do i write it?
September 26, 2010 by OLGA

science
what is the charge on an aluminum ion?
October 18, 2010 by mic

chem
what is the name of ONO and what is its charge
December 1, 2010 by anon

computers
How many coulombs of charge do 30 10^31 posses?
January 6, 2011 by Anonymous

physics
Can a body have a charge of 4.8*10 20 c
April 5, 2012 by Anonymous

chemistry
a. What is the net charge on valine at pH 1? b. at pH 7? c. at pH 14?
April 26, 2012 by krystal

biochemistry
a. What is the net charge on valine at pH 1? b. at pH 7? c. at pH 14?
April 27, 2012 by krystal

physics
charge on 500mg of electron
July 27, 2014 by AYESHA

Electricity
when an electron is displaced in a semiconductor, the hole that's left behind is? A)attracted to the negative terminal of the voltage source. B)incapable of carrying a charge. C)attracted to the anode of the voltage source. D)considered an impurity in the crystal. The electron...
August 20, 2005 by angela

physics
Given two particles with 2.00 micro coulomb charges as shown and a particle with a charge q=1.28x16-18C at the origin. (A)What is the net force exerted by the two 2.00 micro coulomb charges on test charge q? (B)What is the electric field at the origin due to the two 2.00micro ...
September 21, 2009 by sandhu

Physics and Calculus
Consider a charged ring of radius 27 cm and total charge 15 nC. We are interested in the electric field a perpendicular distance z away from the center of the ring. At what distance from the center of the ring does the electric field become maximum? Hint: The field for a ring...
February 15, 2010 by Sandra

math
Sam received a $290 discount loan to purchase a stereo. The loan was offered at 16% for 90 days. Find the interest in dollars and the proceeds for the following problem. The interest is $12.60, $11.60, or $10.60 ? The proceeds are $279.40, $278.40, or $277.40 ? Curtis ...
January 26, 2010 by Kendra

how do protons move during electrophoresis
During electrophoresis, protons move in the same direction as DNA. do not move at all. move in the opposite direction as DNA. move randomly. I am thinking they move in the same direction as DNA or am I wrong? DNA travels in accordance with its principal charge, negative, the ...
October 22, 2006 by Kellie Jo

Physics
Three parallel plate capacitors (C1,C2 and C3 ) are in series with a battery of 100 V. C1=2500 micro Farad; C2=2C1 , C3=3C1 . (a) What is the potential difference over each capacitor and how much charge is on each capacitor? Across C1 :V1 (in Volts) = incorrect Q1 (in C) = ...
March 13, 2013 by P

chemistry
What is the oxidation state of S in Rb2SO4? is the charge = 0?
November 25, 2007 by Meg

sci
what is an atomic particles with a negative charge???
May 28, 2008 by sam

biology
Which part of an atom has a positive charge?
December 11, 2008 by Hi There

math
What is finance charge and how do you figure it out?
January 8, 2009 by xboxwee

science
how can a plastic ruler get a positive charge?
January 26, 2010 by robin

chemistry
the weight and charge of and electron is respectively o and -1 1 and 0 1 and -1 0 and +1
October 11, 2010 by kaiya

English
I need a poem on If I were in charge of the world.
January 30, 2011 by Adraian

Science
Why does an ion have an electrical charge?
September 5, 2011 by Sami

economics
What do brokerage firms charge fees on
April 17, 2012 by karla

chemistry
What is the net charge on Phe-Asp at each pH? a. pH 1 b. pH 7 c. pH 14
April 26, 2012 by krystal

biochemistry
What is the net charge on Phe-Asp at each pH? a. pH 1 b. pH 7 c. pH 14
April 27, 2012 by krystal

physics
why and how does the blowing snow charge the fences?
November 8, 2012 by katrina

chemestry
what is the charge on an ion with 25 protons and 29 electrons?
November 28, 2012 by Anonymous

AP Chemistry
Formal charge: When do you use it? How is it calculated?
February 21, 2013 by Kenzi

AP Chemistry
Formal charge: When do you use it? How is it calculated?
February 21, 2013 by Kenzi

science
What caused by matter that has an electric charge?
March 25, 2013 by ttuuffyy

History
What was the impact of technology on the Pickett's Charge?
August 3, 2014 by Jenny

physics
In the circuit below, at time t = 0, the switch is closed, causing the capacitors to charge. The voltage across the battery is 12 V The circuit: flickr. com/photos/ 68751220@N03 /6848519773/ A)Calculate the time constant for the RC circuit B)Calculate the time required for the...
July 27, 2012 by Dan

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