How many excess electrons does she get?A person scuffing her feet on a wool rug on a dry dayaccumulates a net charge of -40 µCExpress your answer using two significant figures.N =electronsSubmitRequest AnswerPart BBy how much does her mass increase?Express your answer using two significant figures.HAAm =ValueUnitsSubmitRequest AnswerProvide Feedback

A person scuffing her feet on a wool rug on a dry day accumulates a net charge of -40 uC . Q = - 40…

Answered: How many excess electrons does she get?…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter23: Electric Forces

Section: Chapter Questions

Problem 15PQ: A charge of 36.3 nC is transferred to a neutral copper ball of radius 4.35 cm. The ball is not...

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Suppose Earth and the Moon each carried a net negative charge Q . Approximate both bodies as point masses and point charges. (a) What value of Q is required to balance the gravitational attraction between Earth and the Moon? (b) Does the distance between Earth and the Moon affect your answer? Explain. (c) How many electrons would be needed to produce this charge?
A charge of 36.3 nC is transferred to a neutral copper ball of radius 4.35 cm. The ball is not grounded. The excess electrons spread uniformly on the surface of the ball. What is the number density (number of electrons per unit surface area) of excess electrons on the surface of the ball?
A glass rod is initially neutral. After it is rubbed with silk, its charge is 45.7 C. a. Has the rod gained or lost mass? Explain. b. How much mass has the rod gained or lost?
An oil droplet is charged by spraying it with a quick burst of air which removes some of the electrons from the droplet. Which of the following are possible measurements for the resulting net charge on the droplet? Оа. 4,8 х 10-19 с O b. 6.4 x 10-19c O C. 3.9 x 10-19 c d. a and b O e. all are possible
To find out how big or small the value of 1 C is, calculate:a) How many electrons are needed to generate a charge of 1 C tsb.b) What is the mass of all these electrons?c) If two loads of 1 C each are 1 km apart, calculate the repulsion force between the two payloads.
Two 1.0 kg masses are 4 m apart (centre to centre) on a frictionless table. Each has + 20 uCof charge. Write your answer to 3 sig fig. Use the notation 1.0E5 for 1.0x105. Do not use coma. Answer_______N What is the initial acceleration of this mass if it is released and allowed to move? a=_________m/s2
How many excess electrons can be counted in a rubber rod of - 3 *0.00001 nano Coulombs of charges? Your Answer: Answer P Type here to search a O 41F Haze ^6 O R AM 2/11/2022 257AM 4 d0 12 te to 米 "g. esc delete home end Da up %23 %24 & 6 num 3 8. 9 %3D + backspace lcok T. Y P 7. 8. tab home Dg up H J K 6. enter caps lock prt sc M * shift 2 3. shift T end De dn alt cul fn alt ins
04 Two very small spheres are initially neutral and separated by a distance of $6 cm. Suppose that 310¹1 electrons are removed from one sphere and placed on the other. (a) What is the magnitude of the electrostatic force that acts on cach sphere? (b) is the force attractive or repulsive? Why?
A5
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Complete the following statements: After some rather exhausting counting (and a rather tall tale), a physics teacher determines that a very small sample of an object contains ... a. ... 8.25749 x 1017 protons and 5.26 x 1014 electrons; the charge on this object is ____ Coulombs. b. ... 3.12 x 1014 protons and 4.5488 x 1016 electrons; the charge on this object is ____ Coulombs. c. ... 2.40277 x 1019 protons and 9.88 x 1016 electrons; the charge on this object is ____ Coulombs. d. ... 2.6325 x 1015 protons and 2.6325 x 1015 electrons; the charge on this object is ____ Coulombs.
Use the following constants if necessary. Coulomb constant, k of the Charge of one electron, e symbol carries their usual meaning. For example, µC means micro coulomb . -8.987 x 10° N . m? /C?. Vacuum permitivity, eg = 8.854 x 10 12 F/m. Magnitude 9.10938356 x 10 31 kg. Unless specified otherwise, each 1.60217662 x 10-19 C. Mass of one electron, m. R Suppose you have 5 point charges q to gs distributed along a semi-circie maintaining equal distance. The charge gs is at the center of the circle. The radius of the semi-circle is R = 28 cm and the magnitude of the charges are as follows : 9 24 µC, 92 = q4 29 µC and qs = q 27 µC. f) Calculate the coulomb force on go due to qa in unit vector notation and call it F46- z component of the force Give your answer to at least three significance digits. N y component of the force Give your answer to at least three significance digits. N g) Calculate the Net Electric force on g6 due to all other charges. z component of the force Give your answer to…

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