Two 0.90 g spheres are charged equally and placed 2.1 cm apart. When released, they begin to accelerate at 130 m/s². What is the magnitude of the charge on each sphere? Answer: = q 76 nC
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Q: You hold a ruler that has a charge on its tip 4.00 cm above a small piece of tissue paper to see if…
A: GivenCharge on ruler (q1) = -14.0 μCDistance (r) = 4.00 cm =4.00 ×10-2 mmass of the tissue paper (m)…
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- Four identical metallic objects carry the following charges: +1.49, +6.33, -4.69, and -9.03 µC. The objects are brought simultaneously into contact, so that each touches the others. Then they are separated. (a) What is the final chatge on each object? (b) How many electrons (or protons) make up the final charge on each object? (a) Number i Units (b) Number i UnitsA 60-g ball of copper has a net charge of 3 μC. What fraction of the copper's electrons have been removed? (Each neutral copper atom has 29 protons and 29 electrons, and copper has an atomic mass of 63.5 a.m.u.)-3 F y (m) T B 1 2 x (m) Two point charges. A = -2 Q and B = 4Q are located at the positions shown in the figure above. a) What is the force on a charge +q at the origin? -1 jkQq N b) Where would you place a point charge +3.5 Q such that the net force on q is zero? (x, y) = (0.400978 1.80440
- Two balloons (m = 0.022 kg) are separated by a distance of d = 12 m. They are released from rest and observed to have an instantaneous acceleration of a = 1.1 m/s2 toward each other at the moment they are released. Assume the two balloons are point charges and have equal but opposite charges. Part (a) Calculate the magnitude of the charge on each balloon in C. Part (b) How many electrons are responsible for the charge, N?6. Shown below is a small sphere of mass 0.25 g that carries charge of 0.90 nC. The sphere is attached to one end of a very thin silk string 5.0 cm long. The other end of the string is attached to a large, thin, vertical conducting plate with surface charge density of 30.0 µC/m². When another thin vertical large plate with uniformly distributed negative charge is brought close to the small sphere (but not touching), 0 increases for additional 5.00°. Determine the surface charge density on the negative plate. + + + + + + + + + + + + + + + +Two parallel plates of charge (+) and (-) are placed with a distance of d = 5 mm (see picture). The charge density of each plate is the same, namely 17.7 μC/m². A positive charge q = +3 nC with mass m = 30 x 10^-30 kg is released from rest starting from the left plate. What is the kinetic energy of this charge when it arrives at the right plate?
- Two point charges are located 2.5 mm apart. The force between the particles has a negative magnitude of 4.0N. If the two point charges are moved 5.0 mm apart and everything remains the same, the new face between the charges will have a magnitude of? I know the answer is 1.0 N but how?A small glass bead charged to 4.5 nC is in the plane that bisects a thin, uniformly charged, 10-cm-long glass rod and is 4.0 cm from the rod's center. The bead is repelled from the rod with a force of 740 μN. What is the total charge of the rod?You hold a ruler that has a charge on its tip 6.00 cm above a small piece of tissue paper to see if it can be picked up. The ruler has -14.0 µC of charge. The tissue has 1.00 g of mass. What is the minimum charge required to pick up the tissue paper? μC
- Answer the followingA positively charged rod is brought near a neutral conducting metal sphere. Someone then touches the sphere for a few moments, then releases it. The rod is then pulled away from the sphere. What has happened to the charge and mass of the sphere?Five point charges, all with q= 60 nC, are spaced equally along a semicircle as shown in the Figure. If the semicircle has a radius of 9.5 m, what is the magnitude of the electric field at the origin?