Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

problem 1: Four point charges P, Q, R and S each of +4.0 nC are placed at each of the corners of a square of side 0.10 m.

a) Find out the electrostatic force, magnitude and direction, on charge P.
b) What is the electrostatic force on a -1.0 nC charge positioned at the centre of the square? You should justify your answer.

971_electrostatic force.jpg

problem 2: A proton and an electron encompass an average separation of 2.0 × 10-10 m. Compute the ratio of the electrostatic force FE to the gravitational force FG acting on the particles.

Use G = 6.67 × 10-11 N m2 kg-2.

problem 3: Assume that the Earth (mass 6.0 × 1024 kg) has an excess of positive charge and the Moon (mass 7.3 × 1022 kg) has an equivalent excess of positive charge. Compute the size of the charge needed so that the electrostatic force between them balances the gravitational force among them.

problem 4: The diagram below exhibits three charges fixed in the positions shown below.

186_resultant force on charge.jpg

Q1 = – 1.0 × 10–6 C, Q2 = + 3.0 × 10–6 C and Q3 = –2.0 × 10–6 C.

Compute the resultant force on charge Q1. (Keep in mind that this resultant force will have a direction and also magnitude).

problem 5: In an experiment to show Coulomb’s law, an insulated, light, charged sphere is brought close to the other similarly charged sphere that is suspended at the end of a thread of length 0.80 m. The mass of the suspended sphere is 0.50 g.

It is found that the suspended sphere is displaced to the left by a distance of 16 mm as illustrated below.

933_force on suspended sphere.jpg

a) Make a sketch exhibiting all of the forces acting on the suspended sphere.

b) Compute the electrostatic force acting on the suspended sphere.

problem 6: Two identical charged spheres of mass 0.10 g are hung from similar point by silk threads. The electrostatic force between the spheres causes them to separate by 10 mm. The angle between one of the silk threads and the vertical is 5.7°.

a) By drawing a force diagram, determine the electrostatic force FE between the spheres.

b) Compute the size of the charge on each sphere.

c) The average leakage current from a charged sphere is 1.0 × 10–11 A.  Compute the time taken for the spheres to discharge completely.

d) describe how the two spheres might be given identical charges.

Physics, Academics

  • Category:- Physics
  • Reference No.:- M95819

Have any Question? 


Related Questions in Physics

Linear binary codes use the input symbols 0 and 1 with

Linear binary codes use the input symbols 0 and 1 with equal probability, implicitly treating the channel as a symmetric channel. Investigate how much loss in communication rate is caused by this assumption, if in fact t ...

1 the population of the ukraine fell from 457 million in

1. The population of the Ukraine fell from 45.7 million in 2009 to 45.42 million in 2010.40 Assuming exponential decline, in what year is the population predicted to be 45 million? 2. Find the half-life of a radioactive ...

Estimate how many patterns in ay are recognizable as the

Estimate how many patterns in AY are recognizable as the character ‘2'. [The aim of this problem is to try to demonstrate the existence of as many patterns as possible that are recognizable as 2s.] Discuss how one might ...

1 a vertical cylindrical tank having a base diameter of 10

1. A vertical cylindrical tank having a base diameter of 10 m and a height of 5 m is filled to the top with water at 20°C. How much water will overflow if the water is heated to 80°C? 2. A liquid in a cylinder has a volu ...

1 implement the covariant ica algorithm and apply it to toy

1. Implement the covariant ICA algorithm and apply it to toy data. 2. Create algorithms appropriate for the situations: (a) x includes substantial Gaussian noise; (b) more measurements than latent variables (J > I); (c) ...

A radioactive isotope is being produced at a constant rate

A radioactive isotope is being produced at a constant rate dN/dt - R in an experiment. The isotope has a half-life Show that after a time t >> t1/2, the number of active nuclei will become constant. Find the value of thi ...

At a wild-west show a markmanfires a bullet at a 12 g coin

At a wild-west show, a markmanfires a bullet at a 12 g coin that's thrown straight up into the air. The marks man points his rifle at a 45o angle above the ground, then fires a 15 g bullet at a speed of 550 m/s. Just as ...

Technetium-99 is a radioactive isotope with a half-life of

Technetium-99 is a radioactive isotope with a half-life of 6 hours that is used in bone scans and other medical tests, decaying by gamma-ray emission. A hospital technician prepares a sample of technetium-99 12 hours bef ...

The generic solution for a particle in a 1d box with length

The generic solution for a particle in a 1D box with length, a, is A sin kx + B cos kx. State the values and explain the mathematic origins for A, B and k.

A child and sled with a combined mass of 527 kg slide down

A child and sled with a combined mass of 52.7 kg slide down a frictionless hill that is 10.9 m high at an angle of 29? from horizontal. The acceleration of gravity is 9.81 m/s2 . If the sled starts from rest, what is its ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen