Search: A +27 point charge is placed 6.0 from an identical +27 point charge. How much work would be required by an external force to move a +0.14 test charge from a point midway between them to a point 1.3 closer to either of the charges?

Number of results: 38,741

chemistry
The dipole moment of HCl is 1.0 D, whuch represents a charge separation of about .17 of an electron charge. If the dipole moment of HBr is .8 D what fraction of a positive charge is found at H nucleus in HBr? Please explain
Tuesday, October 27, 2009 at 1:04am by Adam

Math
27.4 + 213.321 + 39.38 Answer: 280.100 (I do not get the 286 anyway) not precise to more than tenths because 27.4 is NOT 27.400 so I say 280.1 period
Tuesday, February 19, 2008 at 9:49pm by Damon

math
9m+n=24 m-8n=27 n= 24-9m 27= m - 8(24-9m) 27= m - 192 - 72m 219= -71m so m = 3.0845 Double check by entering this into the other equation. 9(-3.0845)+ (24-9(-3.0845) -27.7605 + 24 - -27.7605 = 24. so m = -3.0845 -3.0845 - 8(n)= 27 -8n= 30.0845 n= - 3.7606 m: -3.0845 n= -3.7606
Monday, July 12, 2010 at 8:41pm by Casey

Physics :(( help please TT
A source of ions at point O produces a slightly diverging beam with half-angle of divergence α0≪1. In order to collimate (re-focus) the beam, one can apply a uniform magnetic field along the z-axis (see the figure below). If all the ions have the same ...
Tuesday, April 16, 2013 at 3:45am by The question actually is...........

Physics
An alpha particle (charge +2e and mass 6.64 x10-27 kg) is traveling to the right at 1.50 km/s. What uniform electric field (magnitude and direction) is needed to cause it to travel to the left at the same speed after 2.65 s.?
Sunday, March 10, 2013 at 12:09pm by Anonymous

Physics
An electron is placed near a neutron. Which statement best describes the electrostatic force between them? a) there's no force between them since one is neutral b)there's a force of repulsion between them c)there's a force of attraction between them Isn't it a...
Saturday, April 5, 2008 at 8:12pm by Andrea

Physics
A,B,C,D are four charges placed at each corner of a square, with A= -6.00 mC , B=6.00 mC, C=-6.00 mC and D=6.00 mC.ALso AB=BC=CD=DA=0.100 m.Determine the magnitude and direction of force on each charge.
Sunday, January 20, 2008 at 2:08am by Niraj

Physics
A -10 mC charge experiences a force of 75 N directed south. What is the electric field magnitude and direction at the location of the charge? If this charge is removed and not replaced, what is the electric field magnitude and direction at the location it used to occupy? I ...
Saturday, May 5, 2012 at 9:59am by Alaine'

calculus
You missed my point, the issue was not whether it was 3450 or 34500, the point was the use of brackets. Did you not look at my reply? simply change 3450 to 34500 and follow the steps. You derivative would be correct if you had placed it in brackets , such as f'(x) = (700v^...
Monday, August 13, 2012 at 5:17am by Reiny

7th grade math help Ms.Sue please ASAP
1. If a number is not a rational number, then it is _____. (1 point) an integer an irrational number a whole number a radical 2. A picture frame is 12 inches long and 9 inches wide. In inches, what is the diagonal length of the picture frame? (1 point) 21 15 8 6 3. Which ...
Wednesday, October 24, 2012 at 9:38pm by Delilah

Physics
F=0 if E = 0 The point is located to the right from the second charge at the distance ‘x’ => kq₁/(X+x)² =kq₂/x² X=1 64/(1+x)² = 16/ x², 3x²-2x-1 =0 , x={2±sqrt(4+12)}/6. x₁=1, x&...
Thursday, May 9, 2013 at 4:00pm by Elena

Physics
A plate carries a charge of -3.2 µC, while a rod carries a charge of +1.5 µC. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge?
Sunday, March 10, 2013 at 4:16pm by Anonymous

chemsitry
What is the formal charge on each of the atoms in the Lewis structure of the PO4 (-3) charge? Draw another possible Lewis structure of the phosphate ion below. Formal charge on P is ? -how do I do this problem.
Saturday, November 13, 2010 at 6:48pm by Sarah

chem
Cl-Cl is a covalent bond. No charge. SrO is an ionic compound with Sr+2 and O -2. HO is a polyatomic ion with a charge of OH^-. Br-I is a covalent bond. no charge.
Sunday, March 2, 2008 at 11:11pm by DrBob222

pre algebra
1/3 + x = 19/27 x = 19/27 - 1/3 x = 19/27 - 9/27 x = ?
Friday, September 17, 2010 at 10:56pm by Ms. Sue

PHYSICS-repost
It makes no difference what the materials are. Use Coulomb's law. The force depends only upon the charge and the separation. Since the electrical force is attractive, the charge on the ball bearing is negative (opposite to the glass charge.) Note that the gravity force has...
Tuesday, March 23, 2010 at 11:16pm by drwls

Algebra 2
one simple way is to substitute x #1 into #2 and #3: 2(7-y-3z) - 4y + z = 7 3(7-y-3z) + 5y - 4z = -6 which gives you -6y -5z = -7 2y - 13z = -27 now we see 2y = 13z-27, so -3(13z-27) - 5z = -7 -44z = -88 z = 2 so, y = (26-27)/2 = -1/2 and x = 7-(-1/2)-6 = 1/2
Tuesday, May 8, 2012 at 3:33am by Steve

math,help,algebra
Can someone show me how to solve these types of problems. i have two that are driving me nuts.as of now. Problem #1 Simplify: 2radical(12) + 4 radical (27) Problem #2 evaluate if possible the following i am going to describe it in the index it has a 3 then a radical and for ...
Wednesday, March 28, 2007 at 2:26am by jasmine20

math
Charge Q coulombs at time t seconds is given by the differential equation:   0 C Q dt dQ R where C is the capacitance in farads and R is the resistance in ohms. Solve the equation for Q given that Q=Q0 when t=0. A circuit possesses a resistance of 250k&...
Tuesday, May 17, 2011 at 5:34pm by Karl Haxell

math
Make a tally chart for the number of students in the third-fourth-and fifth grade classes: 26,25,27,27,26,28,27 I don't understand how to find the answer.
Thursday, September 22, 2011 at 6:32pm by Brooke

physics 2
1) A spherical surface completely surrounds a collection of charges. Find the electric flux through the surface if the collection consists of a single +3.93E-6 C charge. 2) A plate carries a charge of -2.52μC, while a rod carries a charge of +2.19μC. How many...
Saturday, January 30, 2010 at 9:25pm by corey

math
what is the median of the following group of score 27,27,26,26,26,26,18,13,36,36,30,30,27,29 27
Wednesday, August 25, 2010 at 4:22pm by anonymous

physics
E = 32*10^5 N/C = (surface charge density)/epsilon0 Solve for the plate area (of each plate) using A = (total charge)/(surface charge density)
Sunday, January 30, 2011 at 1:51pm by drwls

Math
Simplify 2^log8X^27 for the log8X^27 part, base is 8,product is X^27
Tuesday, October 10, 2006 at 11:01pm by Kavin

math
break it down into cases at most one day of rain in 3 days to me means we could have: norain norain norain ----> (1/3)^3 = 1/27 rain norain norain -------> 2/3(1/3^2 = 2/27 norain rain norain -------> same as above = 2/27 norain norain rain -------&gt...
Thursday, May 17, 2007 at 10:14pm by Reiny

algebra
4 x + y = 5 y = 5 - 4 x 3 x – 7 y = 27 - 7 y = 27 - 3 x Divide both sides with -7 y = - 27 /7 + 3 x / 7 In google type: functions graphs online When you see list of results click on: rechneronline.de/function-graphs When page be open in blue rectangle type: 5 - 4 x In ...
Sunday, September 18, 2011 at 10:58am by Bosnian

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 something electrically by...
Sunday, December 28, 2008 at 1:35pm by Lizzie

math
okay, so you have(1) 9m+n=24 and (2) m-8n=27 i'm going to use isolate the m in the second formula, that way you can enter it into the first. m-8n=27 isolate the m by moving the other numbers to the other side m=27+8n ^substitute that number for m 9(27+8n)+n=24 solve. 243+...
Monday, July 12, 2010 at 8:41pm by Anonymous

physics
A proton of mass mp = 1.67 x 10-27 kg and charge +e = 1.60 x 10-19 C is accelerated from rest through an electric potential of 400 kV. What is its final velocity?
Wednesday, February 2, 2011 at 10:51am by Physics is a pain

Physics
There is a 85uC point charge at the origin. Find the electric field at the point x3= -45cm , y3= 55cm (5.85*10^5)(-.45+.75)/(-.45^2+.75^2)^3/2 am I totally off The previous questions before this were to find at x1=40cm y1=0 and x2=65cm y2=65cm I figured those out, but can'...
Sunday, August 9, 2009 at 11:05pm by Victor

physics
Charge q1 = 6 uC is at the origin, charge q2 = 7 uC is at y = 2m, x = 0, charge q3 = 1.5 uC is at y = -1 m, x = 0. What is the force on q2?
Wednesday, April 8, 2009 at 6:46pm by Steve

calculus
Let P(x,y) be any point on the curve then we could write P as (x,3âˆš(3x+1)) and if D is the distance to the origin, D^2 = x^2 + (3âˆš(3x+1))^2 = x^2 + 27x + 9 2D(dD/dt) = 2x(dx/dt) + 27(dx/dt) at (5,12) D^2 = 25+135+9 = 169 so D = 13 so dD/dt...
Thursday, October 29, 2009 at 6:56pm by Reiny

Physics
Consider the electric field created by a very long charged line of negative linear charge density -2.50 nC/m. A small positive point charge of 8 mC moves from a distance of 9 cm to a distance of 17 cm. How much work is done by the electric field? Hint: The electric field for a...
Friday, February 12, 2010 at 12:55pm by Susie

physics
please check: A battery converts what type of energy into electrical energy? a. mechanical b. nuclear c. solar d. chemical D When a parallel-plate capacitor is connected to a battery:a____ is stored on one plate, and a ___ is stored on the other a. negative charge, positive ...
Saturday, March 14, 2009 at 9:05pm by physics

chemistry
yeah i placed ice in a tube with a cap and placed that in a flask over the naphthlalene vapors. Thanks! sorry for not being more specific on the experiment!!!
Wednesday, February 13, 2008 at 10:17pm by Whitney

Math
t(4) = ar^3 = -4 t(8) = ar^7 = -324 divide t(8) by t(4) r^4 = 81 r = 81^(1/4) = ± 3 if r = +3 in t(4) a(3^3) = -4 a = -4/27 t(10) = (-4/27)(3^9) = -2916 if r = -3 a = -4/-27 = 4/27 t(10) = ar^9 = (4/27)(-3)^9 = 4(-729) = -2916 either way, t(10) = -2916
Tuesday, December 18, 2012 at 7:33pm by Reiny

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 charge on sphere B. ...
Wednesday, March 24, 2010 at 11:03pm by Dar

physics
Use Coulomb's Law: F = k*Q1*Q2 / r^2 k = 9.00x10^9 N.m^2/C^2 (Coulomb's constant) Q1 = Q2 = 1.60x10^-19C (Elementary charge) r = given in the question (distance) Note: The charge of a proton is equal to the charge of an electron except for the algebraic sign.
Friday, September 5, 2008 at 7:47pm by GK

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?
Sunday, May 1, 2011 at 8:41pm by marissa

Limit
as written, limit is infinity (-18/0). If you meant (x^3-27)/(x-3) then note that for x≠3, (x^3-27)/(x-3) = x^2 + 3x + 9 This is defined for all values except x=3, and the limit is 27.
Wednesday, February 6, 2013 at 10:45pm by Steve

chemistry
a mixture of 1.00 grams hydrogen gas and 1.00 grams helium is placed in a 1.00 L container at 27 degrees cesius. Calculate the partial pressure and total pressure
Tuesday, February 1, 2011 at 5:38pm by Anonymous

math 5th grade
You are 72 and your son is 27. 27 flips to 72. Both digits are prime. Also, 72-27=45.
Tuesday, September 28, 2010 at 4:15pm by the man

Physics
Two identical charged particles of mass m=1.6 kg and electric charge Q=-5.2 μC are placed on an frictionless 26° incline. One of them falls down to the bottom and stops against the wall. The other stays at rest in the middle of the incline as shown in Figure. Find...
Wednesday, June 13, 2012 at 11:21pm by Alex

math
2x^3+4x^2-3x^2-6x when x=3 I did2(3)^3+4(3)^2-3(3)^2-6(3) 2(27)+4(9)-3(9)-6(3) 54+36-27-18 90-27-18 63-18 45 is this correct? Thanks
Monday, January 21, 2013 at 3:52pm by b6

Maths
Let the number be ab a+b=15 10b+a = 10a+b - 27 a + b = 15 -9a + 9b = -27 a + b = 15 a - b = 3 2a = 18 a=9 b=6 check: 69 = 96 - 27
Tuesday, May 8, 2012 at 9:45am by Steve

Algebra
Using rational zero theorem find all rational zeros P(x)=3x^3+43x^2+43x+27 Factors: 27, -1, 3, 9, 27 Factors: 3, -1, 3 +-1/3, +-1, +-3, +-9, +-27 possible rational zero for function P(x)
Thursday, April 3, 2008 at 7:38pm by Sara

Physics
m = m0 / √ [1 - v^2/c^2] Kinetic energy = [m-m0] c^2. Total energy = mc^2. It is given that [m-m0] c^2 = mc^2/6 m = [6/5] *m0 = [6*1.67e-27/5] = 2.004e-27 kg. --------------------------------------… v^2 /C^2=[ m^2 -m0^2] / m^2 =[ 2.004e-27 ^2 -1.67e-27^2] /2....
Sunday, April 19, 2009 at 11:31pm by pearlsawme

Calculus
find the equation for an ellipse that satisfies the following condition Vertices at (-3,1) and (9,1) one focus at (7,1) I will assume you know the general equation of an ellipse and its properties in terms of a,b and c. the centre would be the midpoint of (-3,1) and (9,1) ...
Saturday, April 14, 2007 at 12:59pm by Kelly

algebra
3x=27-15x 3x + 15x = 27 - 15x + 15x 18x = 27 x = 27/18 = 1 9/18 = 1 1/2 What do you think the solution to your other problem is?
Tuesday, September 29, 2009 at 8:00pm by Ms. Sue

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...
Tuesday, September 19, 2006 at 11:49pm by Kevin

Calculus
Two electrical charges, one a positive charge A of magnitude a and the other a negative charge B of magnitude b, are loacted a distance c apart. A positively charged Particle P is situated on the line between A and B. Find where P should be put on so that the pull away from A ...
Sunday, November 12, 2006 at 2:49am by SCk9

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?
Thursday, October 11, 2012 at 8:15pm by derek

Physics
If a 1.0m crowbar is placed uner a 143 kg rock at a point 20.0cm from the end of the bar, what is the IMA of the crowbar?
Monday, March 18, 2013 at 9:45pm by Wanda

physics
I know that 1 micro-coulomb is 1*10^-6 coulombs and 1 electron has 1.60217646 * 10-19 coulombs. I'm not sure if you have to divide or multiply them? And don't you need the mass of the carpet to do it? My answers on true/false; False, it does depend on the magnitude of ...
Monday, January 10, 2011 at 11:11pm by Jaden

Chemistry
The following information is given for ether, C2H5OC2H5, at 1atm: boiling point = 34.6oC Hvap(34.6oC) = 26.5 kJ/mol melting point = -116oC Hfus(-116oC) = 7.27 kJ/mol specific heat liquid = 2.32 J/goC At a pressure of 1 atm, what is H in kJ for the process of condensing a 33.7 ...
Thursday, February 9, 2012 at 10:25pm by Hannah

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 the 6 mC charge. And F...
Friday, May 4, 2012 at 6:15pm by Alex B.

pre calculus
1.)A utility company has the following rate schedule for natural gas usage in a city’s business district: Monthly service charge: $8.80 Per therm service charge 1st 25 therms : $0.6686/therm Over 25 therms: $0.85870/therm (a) What is the charge for using 25 therms in one ...
Tuesday, April 2, 2013 at 10:57am by alexis

Physics
c = q/v v = q/c dv/dt = (1/c) dq/dt = -(1/c) i (negative because the discharge current is decreasing the q on the capacitor) Now let's discharge this capacitor through a resistance R v = i R so i = v/R put those together dv/dt = -(1/c) v/R dv/dt = -(1/Rc)V dv/v = -(1/Rc_) ...
Friday, April 4, 2008 at 4:29pm by Damon

science
an electorn is 20 ccom away from a fixed point charge , q =-0.250uc . if it starst to move from rest , then how fast will it be moving when it is a t distance ?
Thursday, July 19, 2012 at 6:07am by mohit

Physics
three point charges are aligned along the x axis .find the resultant force on q2 due to other two charge?
Monday, September 7, 2009 at 1:17pm by memee

Phizzics....
Both positive and negative charges produce electric fields. Which direction, toward or away from itself, does the field point for each charge?
Tuesday, May 15, 2012 at 7:33pm by matin

physics
a charge Q1 Lcm away from Q2. At what point on the line joining the two charges the electric field is zero
Tuesday, December 1, 2009 at 11:42am by Sanusi T Sununu

physics
a positive charge of 4x10^6c experiences a force of 2n acting to the right.what is the magnitude and direction of the eletric field at this point?
Thursday, May 12, 2011 at 6:38pm by Anonymous

Physics
Given that q = +17 mu C and d = 14 cm, find the magnitude of the net electrostatic force exerted on the point charge q2.
Sunday, April 3, 2011 at 9:14pm by Alice

physics
What are the magnitude and direction of the electric field at a point midway between a -7.0 µC and a +6.0 µC charge 2.5 cm apart? Assume no other charges are nearby.
Saturday, November 27, 2010 at 8:29pm by Anonymous

Physics
How much work does the electric field do in moving a -7.7 micro Coulomb charge from ground to a point whose potential is +55 V higher?
Monday, July 12, 2010 at 10:17pm by Jae

Physics
The finite rod of length L and charge Q looks more like a point source as the observer gets farther way. The answer is a)
Thursday, February 11, 2010 at 8:29pm by drwls

physics
What does the concentration of field lines represent? Answer a. The direction that a positive test charge will be pushed. b. The direction that a negative test charge will be pushed. c. The strength of the force on a positive test charge. d. The strength of the force on a ...
Friday, October 15, 2010 at 5:50pm by jim

physics
A charge of -8.9 µC is traveling at a speed of 7.8 106 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 60°. A force of magnitude 4.0 10-3 N acts on the charge. What is the magnitude of the ...
Saturday, February 5, 2011 at 5:18pm by Anonymous

science 12 (electricity)
if the charge/discharge paths are the same, the time constants are the same. However, it is seldom the charge/discharge paths are the same. An oscilloscope is ideal for measuring charge times and voltages.
Monday, August 8, 2011 at 8:58am by bobpursley

Physics
Help, I know the answer is 4.8 X 10^-19, but I can not figure out how to do it or what formula to use. The question is "A charge moves a distance of 1.7 cm in the direction of a uniform electric field whose magnitude is 220 N/C. As the charge moves, its electrical ...
Tuesday, May 22, 2012 at 5:50pm by Lisa

Chemistry
1. Chemistry is the study of the composition, structure and properties of substances.- F? 21. Which is found in the nucleus-- Protons or neutrons? 27. Copper metal is: a. poor conductors b. brittle c. malleable C? 44. What is the charge on most polyatomic ions? - Negative ...
Monday, October 25, 2010 at 6:32pm by mysterychicken

Chemistry(Please check)
1) Where in the phase diagram of a compound do all phases exist together? a) at the sublimation point b) at the boiling point c) at the melting point d) at the critical point e) at the triple point I chose answer E, the triple point. Is this correct?
Saturday, January 28, 2012 at 11:55pm by Hannah

physics
A charge of +4q is fixed to one corner of a square, while a charge of -9q is fixed to the opposite corner. Expressed in terms of q, what charge should be fixed to the center of the square, so the potential is zero at each of the two empty corners?
Saturday, January 23, 2010 at 11:14pm by Anonymous

earth
On planet Tehar, the free-fall acceleration is the same as that on Earth but there is also a strong downward electric field that is uniform close to the planet's surface. A 2.00 kg ball having a charge of 5.00 µC is thrown upward at a speed of 29.2 m/s and it hits ...
Monday, October 18, 2010 at 1:43pm by Anonymous

physics
2 small conducting spheres are identical except that sphere x has a charge of -10 microcoulombs and sphere y has a charge of +6 microcoulombs after the spheres are brought and then separated what is the charge on each sphere in miicrocoulombs?
Tuesday, January 17, 2012 at 1:18pm by Anonymous

Physics
1. What is (a)the magnitude of the electrostatic force on a 10 microCoulomb charge located at the origin due to a 3 microCoulomb charge located at 1,-2? (b) What is the force on the 3 microCoulomb charge? Write your answer in component notation.
Monday, October 4, 2010 at 5:46pm by Heather

Chemistry
A 19.5-g sample of a metal was heated to 61.67°C. When the metal was placed into 27.1 g of water in a calorimeter, the temperature of the water increased from 25.00°C to 30.00°C. What is the specific heat of the metal?
Tuesday, June 7, 2011 at 8:22am by Lance

7th grade math ASAP quick please
1. If a ping pong ball falls from the top of a building that is 168 feet high, how many seconds will it take the ball to hit the ground? Remember, the formula for distance is d = 16t^2. (1 point) 1 3.2 10.5 16 2. The volume of a box can be found by multiplying the length times...
Monday, October 8, 2012 at 9:09pm by Delilah

Physics-torques
Suppose that a meter stick is balanced at its center. A 0.27-kg is positioned at 18 cm from the left end of the meter stick. Where should a 0.28 kg mass be placed to balance the 0.27 kg mass? Express your answer in terms of the position (in cm) of the 0.28-kg mass as measured ...
Tuesday, March 20, 2007 at 10:50pm by Nicole

Chemistry
If you are talking about the ion itself, I would write it as AlCl4^- If you are talking about drawing the Lewis structure and counting formal charge on each atom; if you count them you will see that each Cl is zero formal charge and the Al has a formal charge of -1.
Sunday, December 5, 2010 at 6:13pm by DrBob222

physics
i can not find the correct answer for this one i got D but someone siad its wrogn electric field strength depends on a. charge adn distnace b. charge adn mass c. Coulomb constant and mass d. elementary charge adn radius
Thursday, March 12, 2009 at 10:13pm by physics

Physics
A charge of +2q is fixed to one corner of a square, while a charge of -3q is fixed to the diagonally opposite corner. Expressed in terms of q, what charge should be fixed to the center of the square, so the potential is zero at each of the two empty corners?
Sunday, September 2, 2007 at 10:17am by Mary

calc
Well, you have called your integral from -a to +a (I might do twice the integral from 0 to a but that is minor details). The real question is: What is a? Your a is where the intersection of k cos x and k x^2 occurs, in other words: cos a = a^2 Now one way to find a is to make ...
Sunday, December 23, 2007 at 1:29pm by Damon

English
1. Why wasn’t he invited to Anila’s party? (1 point) (1 pt) N (0 pts) O (0 pts) P 1 /1 point 2. I hope Anila left me directions to her house. (1 point) (0 pts) N (1 pt) O (0 pts) P 0 /1 point 3. My sister will pick us up after Anila’s party. (1 point) (0 pts) N...
Sunday, October 10, 2010 at 3:47am by MOOOMOO

physics
A rock is thrown horizontally from a bridge with a speed of 30.3 m/s. If the rock is 27.2 meters above the river at the moment of release, a)how long the rock is in the air? b)what is the horizontal distance to the point of impact from the point of release? c)what is the speed...
Wednesday, November 3, 2010 at 10:05pm by Nathaniel

Physics, van de graff generators...
When a small metal ball with a charge is placed in an electrical field supplie dby a van de graff generator, it experiences a force from the generator, and thus it applies a reaction force. But does the ball also apply a force met with a reaction force of the generator? Also, ...
Thursday, June 22, 2006 at 11:27am by TJ

algebra
If your expression mean: 5 * 5 - 35 + 21 - ( - 3 ) * ( - 3 ) * ( - 3 ) then: ( - 3 ) * ( - 3 ) = 9 ( - 3 ) * ( - 3 ) * ( - 3 ) = ( - 3 ) * 9 = - 27 - ( - 3 ) * ( - 3 ) * ( - 3 ) = - ( - 27 ) = 27 5 * 5 - 35 + 21 - ( - 3 ) * ( - 3 ) * ( - 3 ) = 25 - 35 + 21 + 27 = 38
Saturday, July 7, 2012 at 4:50am by Bosnian

9th grade algebra
5^2 = 25 -2 -25 = -27 -(-27) = 27 Subtract 6 from that.
Sunday, September 13, 2009 at 10:28am by drwls

Physics
a) They both act on electric charge, and aew proportional to the charge b) Magnetic forces are produced by moving charges only and act upon moving charges only. Electric fiels act upon any charge, regardless of its motion. Magnetic fields cannot change the speed of a charge, ...
Thursday, February 18, 2010 at 9:07am by drwls

Mat115
Find the five-number summary of the following set of numbers. 0.16, 0.08, 0.27, 0.20, 0.22, 0.32, 0.25, 0.18, 0.28, 0.27 A) 0.08, 0.18, 0.223, 0.27, 0.32 C) 0.08, 0.18, 0.225, 0.27, 0.28 B) 0.08, 0.18, 0.235, 0.27, 0.32 D) 0.08, 0.16, 0.23, 0.28, 0.32 the answer I am getting ...
Thursday, May 8, 2008 at 12:29am by Jana

math
Jack and Jill run 10 kilometers. They start at the same point, run 5 kilometers up a hill, and return to the starting point by the same route. Jack has a 10-minute head start and runs at a rate of 15 km/hr uphill and 20 km/hr downhill. Jill runs 16 km/hr uphill and 22 km/hr ...
Monday, June 25, 2012 at 2:04pm by hemant mishra

physics
A wire of radius one meter is centered on the origin in the xy plane. This wire carries a total charge of +Q. Another wire of length two meters runs along the z-axis and is centered at the origin. It carries total charge -Q. What is the electric field vector at any point on ...
Friday, April 20, 2012 at 11:38pm by allan

physics
On planet Tehar, the acceleration of gravity is the same as that on Earth but there is also a strong downward electric field with the field being uniform close to the planet's surface. A 2.16 kg ball having a charge of 4.80 uC is thrown upward at a speed of 21.0 m/s and it...
Wednesday, September 8, 2010 at 8:00pm by VJC

Mat115
46. Find the five-number summary of the following set of numbers. 0.16, 0.08, 0.27, 0.20, 0.22, 0.32, 0.25, 0.18, 0.28, 0.27 A) 0.08, 0.18, 0.223, 0.27, 0.32 C) 0.08, 0.18, 0.225, 0.27, 0.28 B) 0.08, 0.18, 0.235, 0.27, 0.32 D) 0.08, 0.16, 0.23, 0.28, 0.32 the answer that i am ...
Thursday, May 8, 2008 at 12:29am by Jana

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