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A: Neutral objects are the objects which have equal number of protons and electrons.
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Q: An object has an excess charge of -1.6 x 10 1 C. How many excess electrons does it have?
A: We know thatQ=neHereQ=Chargen=Number of electrone=Charge of electron
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Q: People typically do not feel electrostatic discharges until it reaches ________________.
A: Most of the people do not feel the effect of an ESD until the discharge is least 2000 volts.
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A: When the charge is tripled, the electrostatic force triple as well.
Q: How much charge can you obtain from 1000 electrons?
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What happens when a charged non-conductor is placed near an uncharged conductor body?
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- Two helium-filled, spherical balloons, each with charge q, are tied to a 5.00-g mass with strings of negligible mass, and the system floats in equilibrium as shown in Figure P23.66. The distance between the balloons is 60.0 cm, and the strings are 100.0 cm long. Ignore the weight of the balloon material, and assume that the density of air is 1.29 kg/m3 and the density of helium inside the balloons is 0.200 kg/m3. a. Find the magnitude of the charge q on each balloon. Assume that the charge on each balloon acts as if it were concentrated at its center. b. Find the volume of each balloon. Figure P23.66Is it possible for a conducting sphere of radius 0.10 m to hold a charge of 4.0 C in air? The minimum field required to break down air and turn it into a conductor is 3.0 106 N/C.A 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?
- In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at a thin gold foil. He unexpectedly observed a few of the particles scattered almost directly backward. This result was not consistent with then current models of atomic structure and led Rutherford to propose the existence of a very dense concentration of positive charge at the center of an atom-the atomic nucleus. The alpha particle has a charge of +2e and the gold nucleus a charge of +79e. Suppose that an alpha particle is initially a great distance from the gold, has a kinetic energy of 5.44 MeV (5.44 x 106 eV), and is headed directly at a gold nucleus. How close will the particle come to the center of the nucleus? Treat the nucleus and the alpha particle as point charges.In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at a thin gold foil. He unexpectedly observed a few of the particles scattered almost directly backward. This result was not consistent with then current models of atomic structure and led Rutherford to propose the existence of a very dense concentration of positive charge at the center of an atom—the atomic nucleus. The alpha particle has a charge of +2e and the gold nucleus a charge of +79e. Suppose that an alpha particle is initially a great distance from the gold, has a kinetic energy of 5.70 MeV (5.70 106 eV), and is headed directly at a gold nucleus. How close will the particle come to the center of the nucleus? Treat the nucleus and the alpha particle as point charges.In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at a thin gold foil. He unexpectedly observed a few of the particles scattered almost directly backward. This result was not consistent with then current models of atomic structure and led Rutherford to propose the existence of a very dense concentration of positive charge at the center of an atom-the atomic nucleus. The alpha particle has a charge of +2e and the gold nucleus a charge of +79e. Suppose that an alpha particle is initially How close will at a gold nucleus. a great distance from the gold, has a kinetic energy of 3.97 MeV (3.97 x 106 eV), and is headed directly the particle come to the center of the nucleus? Treat the nucleus and the alpha particle as point charges.
- In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at a thin gold foil. He unexpectedly observed a few of the particles scattered almost directly backward. This result was not consistent with then current models of atomic structure and led Rutherford to propose the existence of a very dense concentration of positive charge at the center of an atom—the atomic nucleus. The alpha particle has a charge of +2e and the gold nucleus a charge of +79e. Suppose that an alpha particle is initially a great distance from the gold, has a kinetic energy of 2.31 MeV (2.31 x 106 eV), and is headed directly at a gold nucleus. How close will the particle come to the center of the nucleus? Treat the nucleus and the alpha particle as point charges.A hollow conductor is positively charged. A small uncharged metal ball is lowered by a silk thread through a small opening in the top of the conductor and allowed to touch its inner surface. After the ball is removed, it will have: a charge whose sign depends on what part of the inner surface it touched O no appreciable charge a positive charge a negative chargeIf conductor P, with a positive charge, is placed in contact with another conductor Q (initially uncharged). After contact what will be the nature of the charge on Q? and on P? How do you know this will happen?
- A suspended object A is attracted to a neutral wall. It's also attracted to a positively charged object B. Which of the following is true about object A? (a) It is uncharged. (b) It has a negative charge. (c)It has a positive charge. (d) It may be either charged or uncharged.A charged conductor of area 40 cm? carries a uniformly distributed charged of 0.2 µC. Determine the mechanical force per unit area of this conductor. Assume that conductor is kept in air.Rocket observations show that dust particles in Earth’s upper atmosphere are often electrically charged. (a) Find the distance separating two dust particles if each has a charge of +e and the Coulomb force between them has magnitude 1.00 × 10 −14 N. (b) Calculate the mass of one of the dust panicles if this Coulomb force would accelerate it at 4.50 × 10 8 m/s 2 . (In the upper atmosphere, effects from other nearby charges typically result in a small net force and acceleration.)