A very small sphere with positive charge q=+ 7.00 μC is released from rest at a point 1.20 cm from a very long line of uniform linear charge density λ=+ 2.00 μC/m .
What is the kinetic energy of the sphere when it is 4.00 cm from the line of charge if the only force on it is the force exerted by the line of charge?

A very small sphere with positive charge q=+ 7.00 μC is released from rest at a...
A very small sphere with positive charge q=+ 7.00 μC is released from rest at a point 1.70 cm from a very long line of uniform linear charge density λ=+ 4.00 μC/m . What is the kinetic energy of the sphere when it is 3.70 cm from the line of charge if the only force on it is the force exerted by the line of charge?
Charge Q = 7.00 μC is distributed uniformly over the volume of an insulating sphere that has radius R = 13.0 cm . A small sphere with charge q=+ 2.00 μC and mass 6.00×10−5kg is projected toward the center of the large sphere from an initial large distance. The large sphere is held at a fixed position and the small sphere can be treated as a point charge. What minimum speed must the small sphere have in order to come...
Identical point charges q1 and q2 each have a positive charge +6.00 μC. Charge q1 is held fixed on the x-axis at x=+0.400 m, and q2 is held fixed on the x-axis at x=−0.400 m. A small sphere has charge Q=−0.200 μC and mass 12.0 g. The sphere is initially very far from the origin. It is released from rest and moves along the y-axis toward the origin. (a) As the sphere moves from very large y to y=0, how...
You are holding at rest a small sphere AA with electric charge +q+qand mass mm at a distance dd from another small sphere BB with charge QQ fixed on top of an insulating support. 1) What is the largest magnitude of the force that your hand exerts on sphere AA? Suppose that QQ is positive. 2) What is the smallest magnitude of the force that your hand exerts on sphere AA? Suppose that QQ is positive and the weight of...
An infinite line of positive charge lies along the y axis, with charge density λ = 2.30 μC/m. A dipole is placed with its center along the x axis at x = 28.0 cm. The dipole consists of two charges ±10.0 μC separated by 2.00 cm. The axis of the dipole makes an angle of 45.0° with the x axis, and the positive charge is farther from the line of charge than the negative charge. Find the net force exerted...
A small sphere of mass m 7.00 g and charge q below the first charge a distance d 2.00 cm below the first charge as in the figure 1 27.6 nC is attached to the end of a string and hangs vertically as in the figure. A second charge of equal mass and charge -58.0 nc is lod (a) Find the tension in the string.
A positive point charge q of mass m is released from rest from the positive plate of a capacitor. Determine the following as a function of the electric field E: a) x (distance from the + plate) b) Vf (velocity before hitting the negative plate a distance d away) c) the kinetic energy of the charge just before hitting the negative plate.
A sphere of radius 4.72 cm and uniform surface charge density +11.3 μC/m2 exerts an electrostatic force of magnitude 4.70×10−2 N on a point charge +1.20 μC . Find the separation between the point charge and the center of the sphere. r=__________m
A very large, horizontal, nonconducting sheet of charge has uniform charge per unit area 9.00 × 10−6 C/m2. A small sphere of mass m = 4.00 × 10−6 kg and charge q is placed 3.00 cm above the sheet of charge and then released from rest. A) If the sphere is to remain motionless when it is released, what must be the value of q? Express your answer with the appropriate units. B) What is q if the sphere is...
A solid conducting sphere of radius 2.00 cm has a charge of 8.30 μC. A conducting spherical shell of inner radius 4.00 cm and outer radius 5.00 cm is concentric with the solid sphere and has a charge of -3.00 μC. Find the electric field at the following radii from the center of this charge configuration. (a) r= 1.00 cm (b) r = 3.00 cm (c) r = 4.50 cm(d) r = 7.00 cm