For problem 10, why does the charge accelerate to the left? AJ 0.050 pFB) 320 pFC) 20 pFD) 80 pFE) 40 pF9.) Which force below does NOT originate from the electric force between charges?A) The tension force on a rope being pulled.BThe attractive force that keeps the moon in orbit around the Earth - gravityC) The friction force that slows a block sliding across a table.D) The support force that allows a chair to support the person sitting on it.E) All of the forces in A, B, C, and D originate from the electric force betweencharges10.) A negative charge q <0 is placed at the origin, in an electric field E that points towards thepositive x-direction as shown. This charge will:tyeleA) accelerate to the left (-x direction)B) accelerate up (+y direction)C) not accelerateD) accelerate to the right (+x direction)E) accelerate down (-y direction)q<0E+xD) +2g/Ared thro1.) The electrical force between a sodium Na ion (positively charged) and a hydronium i

The electric field intensity at a point in an electric field is the force on a unit positive charge…

charges 10.) A negative charge q < 0 is placed at the origin, in an electric field E that points towards the positive x-direction as shown. This charge will: sty A) accelerate to the left (-x direction) B) accelerate up (+y direction) C) not accelerate D) accelerate to the right (+x direction) E) accelerate down (-y direction) 9<0 encle E red throu +x

charges 10.) A negative charge q < 0 is placed at the origin, in an electric field E that points towards the positive x-direction as shown. This charge will: sty A) accelerate to the left (-x direction) B) accelerate up (+y direction) C) not accelerate D) accelerate to the right (+x direction) E) accelerate down (-y direction) 9<0 encle E red throu +x

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter18: Electric Charge And Electric Field

Section: Chapter Questions

Problem 20PE: (a) Common transparent tape becomes charged when pulled from a dispenser. If one piece is placed...

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Rocket observations show that dust particles in Earths 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 1014 N. (b) Calculate the mass of one of the dust panicles if this Coulomb force would accelerate it at 4.50 108 m/s2. (In the upper atmosphere, effects from other nearby charges typically result in a small net force and acceleration.)
Using the symmetry of the arrangement, determine the direction of the force on q in the figure below, given that qa=qb=+7.50C and qc = qd = 7.50C. (b) Calculate the magnitude of the force on the charge q, given that the square is 10.0 cm on a side and q = 2.00 C.
(a) Common transparent tape becomes charged when pulled from a dispenser. If one piece is placed above another, the repulsive force can be great enough to support the top piece’s weight. Assuming equal point charges (only an approximation), calculate the magnitude of the charge if electrostatic force is great enough to support the weight of a mg piece of tape held 1.00 cm above another. (b) Discuss whether the magnitude of this charge is consistent with what is typical of static electricity.
An object with negative charge is placed in a region of space where the electric field is directed vertically upward. What is the direction of the electric force exerted on this charge? (a) It is up. (b) It is down. (c) There is no force. (d) The force can be in any direction.
Construct Your Own Problem Consider identical spherical conducting space ships in deep space where gravitational fields from other bodies are negligible compared to the gravitational attraction between the ships. Construct a problem in which you place identical excess charges on the space ships to exactly counter their gravitational attraction. Calculate the amount of excess charge needed. Examine whether that charge depends on the distance between the centers of the ships, the masses of the ships, or any other factors. Discuss whether this would be an easy, difficult, or even impossible thing to do in practice.
Object A has a charge of +2 C, and object B has a charge of +6 C. Which statement is true about the electric forces on the objects? (a) FAB=3FBA (b)FAB=FBA (c) 3FAB=FBA (d) FAB=3FBA (e) FAB=FBA (f) 3FAB=FBA
Integrated Concepts Figure 18.57 shows an electron passing between two charged metal plates that create an 100 N/C vertical electric field perpendicular to the electron's original horizontal velocity. (These can be used to change the electron’s direction, such as in an oscilloscope.) The initial speed of the electron is 3.00106 m/s, and the horizontal distance it travels in the uniform field is 4.00 cm. (a) What is its vertical deflection? (b) What is the vertical component of its final velocity? (c) At what angle does it exit? Neglect any edge effects.
Integrated Concepts A 5.00 g charged insulating ball hangs or a 30.0 cm long string in a uniform horizontal electric field as shown in Figure 18.56. Given the charge on the ball is 1,00 C, find the strength of the field.
Suppose a woman carries an excess charge. To maintain her charged status can she he standing on just any pair of shoes? How would you discharge her? What are the consequences if she simply walks away?
What is the force on the charge located at x = 8.00 cm in Figure 18.52(a) given that q = 1.00 C?
A certain five cent coin contains 5.00 g of nickel. What fraction of the nickel atoms’ electrons, removed and placed 1.00 m above it, would support the weight of this coin? The atomic mass of nickel is 53.7, and each nickel atom contains 28 electrons and 28 protons
Considering Figure 18.46, suppose that qa= qdand qb= qc. First show that q is in static equilibrium. (You may neglect the gravitational force.) Then discuss whether the equilibrium is stable or unstable, noting that this may depend on the signs of the charges and the direction of displacement of q from the center of the square.