128,287 results

### Physics

Hi, I solved this problem, but I want to make sure it is correct: 2 equal charges are separated by 3.7x10^-10m. The force between the charges has magnitude of 2.37x10^-3N.What is the magnitude of q on the charges? F= ( k x q x q)/ (r^2) F=2.37 c 10^3 N k= 9 x 10^9 r= 3.7 x 10...

### Physics (SO CONFUSED!!!)

I think I'm using the wrong formulas or SOMETHING... Here's the question: "Two equal charges are separated by 3.7 ´ 10^-10 m. The force between the charges has a magnitude of 2.37 ´ 10^-3 N. What is the magnitude of q on the charges?" Here's my work: F = kc(q1q2/r^2) 2.37 x ...

### Physics

Picture the following: A square with 4 point charges. Charges Q are diagonal from eachother, and charges -Q are diagonal from eachother. The length of each side is "a". One of the -Q charges is "kicked" away with an outward initial speed of V0, while the three other charges ...

### Physics

Two point charges are 10.0 cm apart and have charges of 2.0 μC and –2.0 μC, respectively. What is the magnitude of the electric field at the midpoint between the two charges? 8.99*10^9(2*10^-6/.025)=719200 Two equal charges are separated by 3.7 x 10-10 m. The force...

### PHYSICS

The force of repulsion between two identical negative charges is 3.95 N, when the charges are 35.0 cm apart. What is the magnitude of these charges?

### physics

please check this one question: Which interaction of nature binds atoms and molecules by attracting unlike charges and repulsing like charges? a. strong b. weak c. electromagnetic d. gravitational A

### physics

When point charges q1 = +5.4 ìC and q2 = +8.3 ìC are brought near each other, each experiences a repulsive force of magnitude 0.69 N. Determine the distance between the charges. i used the eqution F=k(q1)(q2)/r^2 . i got 7.64E5 but it is not right .can you please help

### Physics

Two charges are placed on the x axis. One of the charges (q1 = +8.71C) is at x1 = +3.00 cm and the other (q2 = -28.6C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and (b) x = +6.00 cm. Please help!

### physics

Please help! Two charges are placed on the x axis. One of the charges (q1 = +8.71C) is at x1 = +3.00 cm and the other (q2 = -28.6C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and (b) x = +6.00 cm.

Two charges are placed on the x axis. One of the charges (q1 = +7.91C) is at x1 = +3.00 cm and the other (q2 = -27.3C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and (b) x = +6.00 cm.

### college physics

Two charges are placed on the x axis. One of the charges (q1 = +8.71C) is at x1 = +3.00 cm and the other (q2 = -28.6C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and (b) x = +6.00 cm. Please help!

### Chemistry

I'm stuck on the concept of negative and positive charges. A dish has 10 + charges and 10 - charges. 2 of the negative charges are taken away. What is the overall charge? I think the answer is 2+ charges

### Physics Problems

Can you please help me with the following problem? Two charges separated by one meter exert 1-N forces on each other. If the charges are pushed to 1/4 meter separation, the force on each charge will be?

### Physics

the charges an coodinates of two points charges located in x-y palne are : q1=+3*10^-6 C ; x=+3.5 cm . y=+0,5 cm and q2=-4*10^ -6 C; x= - 2 cm y=+1.5 cm . (a)Find the electric potential at the origin(b)How much work must be done to locate these charges at their given positions...

I think I'm using the wrong formulas or SOMETHING... Here's the question: "Two equal charges are separated by 3.7 ´ 10^-10 m. The force between the charges has a magnitude of 2.37 ´ 10^-3 N. What is the magnitude of q on the charges?" Here's my work: F = kc(q1q2/r^2) 2.37 x ...

### Physics

We study the three point charges shown in the figure. They are held at the corners of an equilateral triangle with ℓ = 0.9 m. What is the electric potential energy of the system of three point charges? Use for the three charges q1 = +2Q, q2 = −3Q, and q3 = +Q, ...

### physics

Two point charges are 10.0 cm apart and have charges of 2.0 µC and -2.0 µC, respectively. What is the magnitude of the electric field at the midpoint between the two charges?

### physics

two charges of equal magnitude are 25.5 cm apart if the force between the charges is 155 N what is the magnitude of the charges

Three point charges, 5.6E-6, 2.2E-6, and -3.0E-6, lie along the x-axis at 0.00 m, 0.031 m, and 0.059 m. What is the force exerted on q1 by the other two charges? What is the force exerted on q2 by the other forces? And what is the force exerted on q3 by the other two charges? ...

Two point charges are separated by 8 cm. The attractive force between them is 14 N. If the two charges attracting each other have equal magnitude, what is the magnitude of each charge?

### Physics

You are given two unknown point charges, Q1 and Q2. At a point on the line joining them, one-third of the way from Q 1 to Q2, the electric field is zero. Are Q1 and Q2 like or unlike charges? How many times greater is Q2 than on Q1? I am really confused on this problem. Please...

### physics

Two point charges 0.600 m apart experience a repulsive force of 0.400 N. The sum of the two charges equals 1.00*10^-5 C. Find the values of the two charges.

### Math

Golds gym charges \$150 to sign up and \$10 per month. Fitness express charges not initial fee but charges \$25 per month. When will the cost be the same? Show work please!!

### physics

two point charges are 10.0 cm apart and have chargeso of 2.0 uC (micro)and -2 uC, respectively. What is the magnitude of the electric field at the midpoint between the two charges? i think the answr is zero.. but i don't understand how to get to it...can you please show me in ...

### 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 ...

### Physics

Two equal charges are separated by 3.7 x 10^-10 m. The force between the charges has a magnitude of 2.37 x 10^-3 N. What is the magnitude of q on the charges? can some one explain to me how to do this step by step. Not that great at math hope you can help. Thanks

### Physics

Find the work that should be done to increase the distance between two point charges with the charges of 5nC and -10nC by 5cm. The initial distance between the charges is 15cm.

### aplied physics

two charges q1=-2uc and q2=3uc are placed at a distance of 6cm from each other. if rubber (Er=2.94) is placed between charges, find magnitude of electric force between charges.

### physics

The figure below shows three charges at the corners of a rectangle of length x = 0.65 m and height y = 0.42 m. What is the electric potential at the center of the rectangle? the picture is of a rectangle with -6.1,+2.7,-3.3 as charges. Your submitted answer is : -4.67e4 V I ...

### physics

Four point charges are located at the corners of a square with sides of length a. Two of the charges are +q, and two are -q. Find the magnitude and direction of the net electric force exerted on a charge +Q, located at the center of the square, for each of the following ...

### physics

The three charges in the figure are at the vertices of an isosceles triangle. Calculate the work that needs to be expanded, in Joules, to bring the charges together (as shown.) Take q=5.7 μC. The length of base is b=2.30 m. The lengths of sides are s=5.80 m. The two ...

### Science

Two point charges are 10.0 cm apart and have charges of 2.0 μC and –2.0 μC, respectively. What is the magnitude of the electric field at the midpoint between the two charges? 8.99*10^9(2*10^-6/.025)=719200 Two equal charges are separated by 3.7 x 10-10 m. The force...

### Physics

Two particles having charges of +0.500nC and +8.00nC are separated by a distance of 1.20m. (a) at what point along the line connecting the two charges is the net electric field due to the two charges equal to zero? (b) where would the net electric field be zero if one of the ...

### Physics

We study the three point charges. They are held at the corners of an equilateral triangle with ℓ = 0.7 m. What is the electric potential energy of the system of three point charges? Use for the three charges q1 = +2Q, q2 = −3Q, q3 = +Q, where Q = 120 nC

### physics

The magnitude of the charges is |q| = 7.8 µC, and the distance between them is d = 2.7 mm. Charge 2 is attracted to charge 1, because they are opposite charges. Charge 2 is repelled from charge 3, because they are like charges. Therefore, both 21 and 23 point to the left...

### chemistry

Draw the Lewis structure of NO2- Assign formal charges to each atom in the O3 molecule shown below. Be sure to click the +/- button below (it will turn yellow when activated) before clicking on the molecule. .. .. .. :O--O==O .. .. Based on formal charges, what is the best ...

### physics

The physics of electric potential energy at one corner of a triangle. Two charges, q1 = +5.0 ìC and q2 = -2.0 ìC are 0.50 m apart. A third charge, q3 = +6.0 ìC is brought from infinity to a spot 0.50 m from both charges so that the three charges form an equilateral triangle...

Four charges are arranged at the corners of a regular tetrahedron (a pyramid with four sides that are identical equilateral triangles). The charges are 1 Coulomb each, and the sides of the tetrahedron are all 1 meter. How much energy in Joules is required to assemble this ...

### Physics

Charges of -10.8 nC and -24.2 nC are separated by 0.813 m. What is the potential midway between the two charges?

### Physics

Why do electric field lines begin on positive charges and end on negative charges?

### Physics

Three point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle, as the drawing shows. The magnitude of each of the charges is 4.0 µC, and the lengths of the sides of the triangle are 4.7 cm. ...

### Physics

Three point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle, as the drawing shows. The magnitude of each of the charges is 4.0 µC, and the lengths of the sides of the triangle are 4.7 cm. ...

### Physics

The drawing shows an equilateral triangle, each side of which has a length of 2.20 cm. Point charges are fixed to each corner, as shown. The 4.00 µC charge experiences a net force due to the charges qA and qB. This net force points vertically downward and has a magnitude of ...

### Physics

Three point charges, +6.7e-6, +2.5e-6, and -3e-6, lie along the x-axis at 0 cm, 2.4 cm, and 5.7, repectively. What is the force exerted on q1 by the other two charges? (to the right is positive) . The coulomb constant is 8.99*10^9 N*m^2/C^2 What is the force exerted on q2 by ...

### physics

Two charges are located along the x-axis. One has a charge of 6.2 µC, and the second has a charge of −3.1 µC. The Coulomb constant is ke = 8.98755 × 10 9 N m2 /C 2 The acceleration of . gravity is 9.81 m/s 2 . If the electrical potential energy associated with the ...

### Physics

If the force between two charges decreases by a factor of 100 because the charges are moved further apart

### physics

Two +'ve charges separated by a distance 2m each other with a force of 0.36N. If the combined charge is 26mc , the charges are

### Physics

A thundercloud has an electric charge of 43.2 C near the top of the cloud and -38.7 C near the bottom of the cloud. The magnitude of the electric force between these two charges is 3.95 x 106 N. What is the average separation between these charges? (kc = 8.99 ×109 N • m2 / ...

### Physics

1) if a positive and negative charge each has a magnitude of 6 uC and are separated by a distance of 10 cm, what is the force between the particles? 2) Given that the repulsive force between two identical positive point charges is 1.0 N when the charges are 0.5 m apart, what ...

### physics

Three equal charges are placed at the corners of an equilateral triangle 0.46 m on a side. What are the magnitude of the force on each charge if the charges are each -4.1×10-9 C?

### Physics

Two point charges Q1 and Q2 are 4C. They are 10cm apart. At what distance betwen the charges the net electric field will be zero?

### physics

please tell me if thsi si correct Two equal charges are separated by 3.7 * 10^-10 m. the force between the charges has a magnitude of 2.37 * 10^-3 N. What is the magnitude of q on the changes? f=1/4pi Er * q^2/r^2 2.37 * 10^-3 = 9*10^9 * q^2 ______________ (3.7 * 10^-10)^2 3....

### Physics

There are 2 point charges. Q1 is 4nC and is at (-2,0). Q2 is -2nC and is at (0,3). How much work does the electric field do when a third point charge of +3.00 nC is moved from infinitely far away and placed at the origin? I know infinitely far means Va will be 0. However ...

### 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 ...

### physics

The figure below shows four charges located at the corners of a square with sides of length a = 8.0 cm. If the charges q1, q2, q3, and q4, are all 4.0 Coulomb, then:

### physics

four equal charges of 10microculomb is placed in4 corners of a square of side 0.2m. Calculate the force at any one of the charges..........

### physics

When point charges q1 = +8.9 µC and q2 = +5.4 µC are brought near each other, each experiences a repulsive force of magnitude 0.71 N. Determine the distance between the charges.

### Physics/Charges

Point charges Q1 = 50 µC and Q2 = -20 µC are placed 2 meters apart. Where can I put a third charge so that the net electrical force on it is zero?

### Physics

When point charges q1 = +3.1 ìC and q2 = +5.1 ìC are brought near each other, each experiences a repulsive force of magnitude 0.54 N. Determine the distance between the charges.

### Physics

If an electric force of 550N is produced from two charges, one is 345C, the other is 125C. How far apart are the charges?

### Physics

Help please, Four charges are placed at the four corners of a square of side 15 cm.The charges on the upper left and right corners are +3 uC and -6 uC respectively. The charges on the lower left and right corners are -2.4uC and-9 uC respectively. The net force on -6uC charge ...

### Physics

Two charges A and B are fixed in place, at different distances from a certain spot. At this spot the potentials due to the two charges are equal. Charge A is 0.24 m from the spot, while charge B is 0.37 m from it. Find the ratio qB/qA of the charges.

### Physics

Two charges A and B are fixed in place, at different distances from a certain spot. At this spot the potentials due to the two charges are equal. Charge A is 0.22 m from the spot, while charge B is 0.54 m from it. Find the ratio qB/qA of the charges. Help!

### physics

Two charges A and B are fixed in place, at different distances from a certain spot. At this spot the potentials due to the two charges are equal. Charge A is 0.22 m from the spot, while charge B is 0.54 m from it. Find the ratio qB/qA of the charges. Help!

### physics

help! Two charges A and B are fixed in place, at different distances from a certain spot. At this spot the potentials due to the two charges are equal. Charge A is 0.22 m from the spot, while charge B is 0.54 m from it. Find the ratio qB/qA of the charges.

### Physics

Two positive charges of 6 �C are separated by a distance of 50 cm in air. What is the electric field strength at the midpoint of the line joining the charges?

### physics

11) Three point charges of magnitudes +6.0 mC, -7.0 mC, and -13 mC are placed on the x-axis at x = 0 cm, x = 40 cm, and x = 120 cm, respectively. What is the force on the -13 mC charge due to the other two charges? A) -0.55 N B) -0.79 N C) 0.55 N D) 0.79 N

### physics

Three point charges are fixed in place in a right triangle. What is the electric force on the q = -0.7 µC charge due to the other two charges? (Let Q1 = +0.79 µC and Q2 = +1.5 µC.)

### 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 charge. The second place ...

### 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. The second place is 7....

### physics

The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q1 = +8.70 µC; the other two charges have identical magnitudes, but opposite signs: q2 = -4.50 µC and q3 = +4.50 µC. Determine the net force (magnitude and direction) ...

### physics

The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q1 = +8.70 µC; the other two charges have identical magnitudes, but opposite signs: q2 = -4.50 µC and q3 = +4.50 µC. Determine the net force (magnitude and direction) ...

### physics

two point charges have a total charge of 277 µC. When placed 2.00 m apart, the force each exerts on the other is 20.8 N and is repulsive. what are the charges on both?

### physics

The figure below shows four charges located at the corners of a square with sides of length a = 8.0 cm. If the charges q1, q2, q3, and q4, are all 4.0 Coulomb, then: find the x and y components

### Physics

Determine the electric potential energy for the array of three charges shown in the drawing, relative to its value when the charges are infinitely far away. (Let q1 = 8.48 µC, q2 = 19.2 µC, and q3 = -16.1 µC.)

### Physics

Determine the electric potential energy for the array of three charges shown in the drawing, relative to its value when the charges are infinitely far away. (Let q1 = 8.48 µC, q2 = 19.2 µC, and q3 = -16.1 µC.)

### physics 2

Suppose that now the magnetic field is reversed, i. e., it is coming out of the page. The charges q1 and q2 are positive, and the charges q3 and q4 are negative. How many of the display paths are incorrect?

### Physics

Two point charges of equal magnitude are seperated by a distance of 12cm in air.An attractive force of 90N acts on each charge.What are the charges

### 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 ...

### physics

In a thundercloud there may be an electric charge of 46 C near the top of the cloud and −46 C near the bottom of the cloud. If these charges are separated by about 6 km, what is the magnitude of the electric force between these two sets of charges? The value of the ...

### Physics

When point charges q1=+8.4uC and q2=+5.6uC are brought near each other, each experiences a repulsive force of magnitude 0.66N. Determine the distance between the charges.

### Physics

When point charges q1=+8.4uC and q2=+5.6uC are brought near each other, each experiences a repulsive force of magnitude 0.66N. Determine the distance between the charges.

### Physics

When point charges q1=+8.4uC and q2=+5.6uC are brought near each other, each experiences a repulsive force of magnitude 0.66N. Determine the distance between the charges.

### physics

2 point charges -9nC n 16nC are separated by distance 1m find the position along the line joining the charges on which the resultant electric intensity is zero

### Physics

3 identical point charges Q are placed at the vertices of equilateral triangle (length of each side is equal to 2m) if Q=60uC, what is the magnitude of Electrostatic force on any one of the charges.

### physics

Please help! I want to make sure my answer is correct. Q:A thundercloud has an electric charge of 43.2 C near the top of the cloud and -38.7 near the bottom of the cloud. The magnitude of the electric force between these two charges is 3.95 x 10^6 N. What is the average ...

Four charges are placed at the four corners of a square of side 15 cm. The charges on the upper left and right corners are +3 µC and -6 µC respectively. The charges on the lower left and right corners are -2.4 µC and -9 µC respectively. The net electric force on -6 µC ...

### Physics

Two charges are located along the x-axis. One has a charge of 6.3 μC, and the second has a charge of −3.4 μC. If the electrical potential energy associated with the pair of charges is −0.043 J,what is the distance between the charges? The value of the ...

### PHYSICS

(b) Two charges of magnitude 0.610 £gC and 0.490 £gC are in a liquid dielectric with dielectric constant £e = 45.0. The charges are separated by a distance of 0.290 m. (i) What is the size of the electric force between the charges? (ii) By how many times is the electric ...

### physics 2

Two charges, -17 and +3.6 µC, are fixed in place and separated by 3.2 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 charges.) (b) ...

### physics

Two charges, -17 and +3.6 µC, are fixed in place and separated by 3.2 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 charges. (b) ...

### physics

Four identical charges (+4.0 uC each) are brought from infinity and fixed to a straight line. The charges are located 0.33m apart. Determine the electric potential energy of this group.

### Physics

Two point charges are separated by 10.0 cm and have charges of 2.0 μC and -2 μC, respectively. What is the electric field at the point midway between the two charges? (k = 8.99 x 109 N.m2/C2) A. 28.8 x 10 6 B. 14.4 x 106 C. 7.19 x 106 D. 3.59 x 106 E. zero i am ...

### Physics

Two point charges are separated by 10.0 cm and have charges of 2.0 μC and -2 μC, respectively. What is the electric field at the point midway between the two charges? (k = 8.99 x 109 N.m2/C2) A. 28.8 x 10 6 B. 14.4 x 106 C. 7.19 x 106 D. 3.59 x 106 E. zero i am ...

### physics

Four identical charges (+2.0ìC each) are brought in from infinity and fixed to a straight line. The charges are located 0.40 meters apart. Determine the electric potential energy of this group.

### physics

Two charges are placed on the x axis. One of the charges (q1 = +6.14C) is at x1 = +3.00 cm and the other (q2 = -28.6C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and (b) x = +6.00 cm.

### physics

Help! Two charges are placed on the x axis. One of the charges (q1 = +8.71C) is at x1 = +3.00 cm and the other (q2 = -28.6C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and (b) x = +6.00 cm.

### physics

Two charges are placed on the x axis. One of the charges (q1 = +7.91C) is at x1 = +3.00 cm and the other (q2 = -27.3C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and (b) x = +6.00 cm.

### Physics

Two charges are placed on the x axis. One of the charges (q1 = +5.44C) is at x1 = +3.00 cm and the other (q2 = -27.7C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and (b) x = +6.00 cm.

### physics

A circle with a radius of R is inscribed in a square. On the corner of the square are point charges of +q, +q, -q, and +q. On the circle are charges of +2q, +2q, -q, and +q. (See sketch.) If q = 4.8 micro-coulombs, and the total potential at the center of the circle due to all...