Physics (5th Edition)
5th Edition
ISBN: 9780321976444
Author: James S. Walker
Publisher: PEARSON
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Chapter 19, Problem 21PCE
To determine
The orbital radius of the electron.
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Chapter 19 Solutions
Physics (5th Edition)
Ch. 19.1 - Enhance Your Understanding (Answers given at the...Ch. 19.2 - Enhance Your Understanding (Answers given at the...Ch. 19.3 - Positive and negative charges of equal magnitude...Ch. 19.4 - Enhance Your Understanding (Answers given at the...Ch. 19.5 - The electric field lines for a system of two...Ch. 19.6 - Two conducting spheres of different radii are...Ch. 19.7 - Four Gaussian surfaces (A, B, C, D) are shown in...Ch. 19 - The fact that the electron has a negative charge...Ch. 19 - Explain why a comb that has been rubbed through...Ch. 19 - Small bits of paper are attracted to an...
Ch. 19 - A charged rod is brought near a suspended object,...Ch. 19 - A charged rod is brought near a suspended object,...Ch. 19 - A point charge +Q is fixed at a height H above the...Ch. 19 - A proton moves in a region of constant electric...Ch. 19 - Describe some of the differences between charging...Ch. 19 - A system consists of two charges of equal...Ch. 19 - The force experienced by charge 1 at point A is...Ch. 19 - Can an electric field exist in a vacuum? Explain.Ch. 19 - Gausss law can tell us how much charge is...Ch. 19 - Predict/Explain An electrically neutral object is...Ch. 19 - (a) Based on the materials listed in Table 19-1,...Ch. 19 - This problem refers to the information given in...Ch. 19 - Find the net charge of a system consisting of (a)...Ch. 19 - Find the total electric charge of 2.5 kg of (a)...Ch. 19 - A container holds a gas consisting of 2.85 moles...Ch. 19 - The Charge on Adhesive Tape When adhesive tape is...Ch. 19 - Four pairs of conducting spheres, all with the...Ch. 19 - A system of 1525 particles, each of which is...Ch. 19 - A charge +q and a charge q are placed at opposite...Ch. 19 - Consider the three electric charges, A, B, and C,...Ch. 19 - Predict/Explain Suppose the charged sphere in...Ch. 19 - At what separation is the electrostatic force...Ch. 19 - How much equal charge should be placed on the...Ch. 19 - Predict/Calculate Two point charges, the first...Ch. 19 - When two identical ions are separated by a...Ch. 19 - Given that q = +18 C and d = 21 cm, find the...Ch. 19 - Five point charges, q1 = +q, q2 = +2q q3 = 3q, q4...Ch. 19 - Three charges, q1 = +q, q2 = q, and q3 = +q, are...Ch. 19 - The attractive electrostatic force between the...Ch. 19 - Prob. 21PCECh. 19 - A sphere of radius 4.22 cm and uniform surface...Ch. 19 - Predict/Calculate Given that q = +12 C and d = 19...Ch. 19 - Suppose the charge q2 in Figure 19-38 can be moved...Ch. 19 - A point charge q = 0.55 nC is fixed at the origin....Ch. 19 - A point charge q = 0.55 nC is fixed at the origin....Ch. 19 - Find the direction and magnitude of the net...Ch. 19 - Predict/Calculate (a) Find the direction and...Ch. 19 - Predict/Calculate Two point charges lie on the x...Ch. 19 - A system consists of two positive point charges,...Ch. 19 - Predict/Calculate The point charges in Figure...Ch. 19 - Referring to the previous problem, suppose that...Ch. 19 - Predict/Calculate (a) If the nucleus in Example...Ch. 19 - Four point charges are located at the corners of a...Ch. 19 - Predict/Calculate Two identical point charges in...Ch. 19 - Two spheres with uniform surface charge density,...Ch. 19 - Point charges, q1 and q2 are placed on the x axis,...Ch. 19 - Two electric charges are separated by a finite...Ch. 19 - What is the magnitude of the electric field...Ch. 19 - A +5.0-C charge experiences a 0.64-N force in the...Ch. 19 - Two point charges lie on the x axis. A charge of...Ch. 19 - Two point charges lie on the x axis. A charge of...Ch. 19 - The electric field on the dashed line in Figure...Ch. 19 - An object with a charge of 2.1 C and a mass of...Ch. 19 - Predict/Calculate Figure 19-42 shows a system...Ch. 19 - Two point charges of equal magnitude are 8.3 cm...Ch. 19 - Predict/Calculate A point charge q = +4.7 C is...Ch. 19 - Predict/Calculate Four point charges, each of...Ch. 19 - The electric field at the point x = 5.00 cm and y...Ch. 19 - Predict/Calculate The electric field lines...Ch. 19 - Referring to Figure 19-43, suppose q2 is not...Ch. 19 - The electric field lines surrounding three charges...Ch. 19 - Make a qualitative sketch of the electric field...Ch. 19 - Sketch the electric field lines for the system of...Ch. 19 - Sketch the electric field lines for the system of...Ch. 19 - Suppose the magnitude of the electric field...Ch. 19 - Predict/Explain Gaussian surface 1 has twice the...Ch. 19 - Suppose the conducting shell in Figure 19-33which...Ch. 19 - Rank the Gaussian surfaces shown in Figure 19-45...Ch. 19 - A uniform electric field of magnitude 35,000 N/C...Ch. 19 - Prob. 61PCECh. 19 - A surface encloses the charges q1 = 3.2 C, q2 =...Ch. 19 - BIO Nerve Cells Nerve cells are long, thin...Ch. 19 - The electric flux through each of the six sides of...Ch. 19 - Consider a spherical Gaussian surface and three...Ch. 19 - The surface charge per area on the outside of a...Ch. 19 - Photovoltaic Field Suppose the field in the...Ch. 19 - A thin wire of infinite extent has a charge per...Ch. 19 - CE Predict/Explain An electron and a proton are...Ch. 19 - CE Predict/Explain In Conceptual Example 19-9,...Ch. 19 - CE Under normal conditions, the electric field at...Ch. 19 - A proton is released from rest in a uniform...Ch. 19 - BIO Ventricular Fibrillation If a charge of 0.30 C...Ch. 19 - A point charge at the origin of a coordinate...Ch. 19 - Prob. 76GPCh. 19 - The Balloon and Your Hair Suppose 7.5 1010...Ch. 19 - The Balloon and the Wall When a charged balloon...Ch. 19 - CE Four lightweight, plastic spheres, labeled A,...Ch. 19 - Find (a) the direction and (b) the magnitude of...Ch. 19 - A small object of mass 0.0150 kg and charge 3.1 C...Ch. 19 - The electric field at a radial distance of 47.7 cm...Ch. 19 - Predict/Calculate Three charges are placed at the...Ch. 19 - Predict/Calculate BIO Cell Membranes The cell...Ch. 19 - A square with sides of length L has a point charge...Ch. 19 - Two small plastic balls hang from threads of...Ch. 19 - A small sphere with a charge of +2.44 C is...Ch. 19 - Twelve identical point charges q are equally...Ch. 19 - BIO Nerve Impulses When a nerve impulse propagates...Ch. 19 - Predict/Calculate The Electric Field of the Earth...Ch. 19 - An object of mass m = 2.5 g and charge Q = +42C is...Ch. 19 - Four identical charges, +Q occupy the corners of a...Ch. 19 - Two charges, +q and q, occupy two corners of an...Ch. 19 - Figure 19-52 shows an electron entering a...Ch. 19 - Two identical conducting spheres are separated by...Ch. 19 - Have you ever pulled clothes from a dryer only to...Ch. 19 - Have you ever pulled clothes from a dryer only to...Ch. 19 - The force required to detach a grain of pollen...Ch. 19 - Pollen of the lisianthus plant requires a force 10...Ch. 19 - Predict/Calculate Referring to Example 19-14...Ch. 19 - Predict/Calculate Referring to Example 19-14 In...Ch. 19 - Predict/Calculate Referring to Example 19-16 The...Ch. 19 - Referring to Example 19-16 Suppose the magnitude...
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- In bohr model of hydrogen atom the electron circulates around the nucleus in a circular path of radius 5.29×10^-11m at a frequncy of 6.60×10^15 hz what valur of B is setup at center of orbitarrow_forwardConsidering electron and proton as two charged particles separated by d = 5.9 × 10-11 m calculate the gravitational force between the proton and electron and find its ratio to the Coulomb force. Take the mass of the proton 1.7 x 10-27 kg, the mass of the electron 9.1 x 10-31 kg, the value of = 9x10⁹ m/F. Give the answer for the universal gravitational constant 6.7 x 10-11 N kg 2m-2, the electron charge -1.6 x 10-¹9 C and the gravitational force in 10-47 N. 1 Απερ Answer:arrow_forwardThe velocity of electron in the first Bohr orbit of radius 0.5 A.U. is 2.24 x 106 m/s. Calculate the period of revolution of the electron in the same orbit.arrow_forward
- The nucleus of a certain atom is 7.30 fm in diameter and has 76.0 protons. What is the acceleration of another proton 4.00 fm from the surface of the nucleus? - 2.35×1027 m/s2, away from the nucleus- 8.20×1028 m/s2, towards the nucleus- 6.55×1029 m/s2, towards the nucleus- 1.79×1029 m/s2, away from the nucleusarrow_forwardAn electron is orbiting a nucleus which has a charge of 14e, under the action of the Coulomb force at a radius of 1.14 × 10-¹0 m. Calculate the angular velocity of the electron, in radians per second. @=||arrow_forward: In parallel-plate diode, the anode is at 250 V with respect to the cathode which is 4 mm away from it. An electron is emitted from cathode with an initial velocity towards anode of 2x106 m/s. Calculate : (i) the arrival velocity of the electron at anode (ii) time of transit (iii) the velocity and distance traveled by the electron after 0.5×10-⁹ S.arrow_forward
- The nucleus of a hydrogen atom is a single proton, which has a radius of about 1.1 × 10-15 m. The single electron in a hydrogen atom orbits the nucleus at a distance of 5.3 x 10-¹1 m. What is the ratio of the density of the hydrogen nucleus to the density of the complete hydrogen atom? Number i 1.12E+13 Units (no units)arrow_forward198. In Fig. 89, four electrons, located at the vertices of a square of side a=1mm, rotate describing a circular orbit around the proton. This is located in the center of the square. Find the angular velocity (lattice/s) of the movement of electrons through the orbit. (m=9,1 . 10-³1 kg, k=9 x 10° N. m²/C²) (a)1,70.105 b)1,72.105 c)1,74.10¹ Fig.89 d)1,76.105 -e c)1,78.105arrow_forwardAs per Bohr model of a hydrogen atom for a stable orbit centripetal, Coulomb, and all forces should be in equilibrium. Therefore, for an electron with mass me and speed v₁ on the nth orbit with radius rn, (k being Coulomb/s constant) mevn = ke²/rn mevn² = ke²/rn mevn²/rn = ke²/rn 2.2 Ome²v² = ke²/r²arrow_forward
- Determine the distance between the electron and proton in an atom if the potential energy ?U of the electron is 13 eV (electronvolt, 1 eV =1.6×10−19=1.6×10−19 J). Give your answer in Angstrom (1 A = 10-10 m).arrow_forwardI Review I Constants During most of its lifetime, a star maintains an equilibrium size in which the inward force of gravity on each atom is balanced by an outward pressure force due to the heat of the nuclear reactions in the core. But after all the hydrogen "fuel" is consumed by nuclear fusion, the pressure force drops and the star undergoes a gravitational collapse until it becomes a neutron star. In a neutron star, the electrons and protons of the atoms are squeezed together by gravity until they fuse into neutrons. Neutron stars spin very rapidly and emit intense pulses of radio and light waves, one pulse per rotation. These "pulsing stars" were discovered in the 1960s and are called pulsars. Part A = 2.0 x 1030 kg) and size (R 3.5 x 10° m) of our sun rotates once every 35.0 days. After undergoing gravitational collapse, A star with the mass (M the star forms a pulsar that is observed by astronomers to emit radio pulses every 0.100 s. By treating the neutron star as a solid sphere,…arrow_forwardThe position of an electron is given by = 3.0tî – 4.0t2+2.0k, wherer is in meter, t is in second. What is the angle between i and +x axis at t=2s. Option 1 Option 2 Option 3 Option 4 Option 5 78.4° 79.4 80.4° 81.4° 82.4°arrow_forward
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