1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zubka84 [21]
3 years ago
12

A horizontal insulating rod of length 11.8-cm and charge 19 nC is in a plane with a long straight vertical uniform line charge.

The linear charge density of the long line charge is 1.4 10-7 C/m. What is the electric force on the rod if the end closest to the line charge is 2.0 cm away? Hint: the electric field from an infinitely long straight uniform line charge is E(r) = 2 k λ r .
Physics
1 answer:
SCORPION-xisa [38]3 years ago
3 0

Answer:

11.962337 × 10^-4 N

Explanation:

Given the following :

Length L = 11.8

Charge = 29nC = 29 × 10^-9 C

Linear charge density λ = 1.4 × 10^-7 C/m

Radius (r) = 2cm = 2/100 = 0.02 m

Using the relation:

E = 2kλ/r ; F =qE

F = 2kλq/L × ∫dr/r

F = 2*k*q*λ/L × (In(0.02 + L) - In(0.02))

2*k*q*λ/L = [2 × (9 * 10^9) * (29 * 10^9) * (1.4 * 10^-7)]/ 0.118] = 6193.2203 × 10^(9 - 9 - 7) = 6193.2203 × 10^-7 = 6.1932203 × 10^-4

In(0.02 + 0.118) - In(0.02) = In(0.138) - In(0.02) = 1.9315214

Hence,

(6.1932203 × 10^-4) × 1.9315214 = 11.962337 × 10^-4 N

You might be interested in
. At what velocity will the box in Problem 6 be traveling when it hits the ground? Use formula: Va = Vf - Vi / 2
VladimirAG [237]

Answer:

How much time does his victim on the ground below have to move out of harm's way? At what velocity will the safe hit the ground? sownt d-200m. n a = 100/2. Vi-o.

Explanation:

5 0
3 years ago
Calculate the momentum of a Lion of mass 130-kg and moving at a speed of 22.3 m/s [W]
Sunny_sXe [5.5K]

Answer:

<h2>289.9 kg.m/s</h2>

Explanation:

The momentum of an object can be found by using the formula

momentum = mass × velocity

From the question we have

momentum = 130 × 22.3

We have the final answer as

<h3>289.9 kg.m/s</h3>

Hope this helps you

3 0
3 years ago
If two people lift identical stacks of books the same distance and one person does the job twice as fast, which of the following
Doss [256]

Answer:

Power

Explanation:

Power is defined as the rate of doing work with reference to the time spent and the formula is force multiplied by velocity.

In this case, if two people lift identical stacks of books the same distance and one person does the job twice as fast, then it means the velocity in the case is doubled which will also lead to an increase in the Power .

7 0
3 years ago
When two objects collide their momentum after the collision is explained by what
pashok25 [27]
The statement to every reacting there is, there is a opposite and same reacting. 
hope it helps
8 0
3 years ago
:) What is practical machine? what is the reda<br>tion between MA and VR in a practical<br>machine?​
denis-greek [22]
Answer: For ideal machine efficiency = 1. Hence M.A = V. R. The V. R of an ideal machine and the practical machine is a constant or is the same for both
3 0
3 years ago
Other questions:
  • After a model rocket reached its maximum height, it then took 5.0 seconds to return to the launch site. what is the approximate
    8·1 answer
  • As you watch the surfers right away towards the shoreline what is the shoreline
    10·1 answer
  • What is an example of volume ​
    9·2 answers
  • How many layers of data can a DVD store?<br> 3<br> 2<br> 4<br> 1<br> 1
    9·1 answer
  • Identify three pollutants released into the air when fossil fuels are burned.
    9·2 answers
  • Find the moment of force of 60 Newton about an axis of rotation at distance 20 cm from the force​
    7·1 answer
  • A machine has mechanical advantage 2.What does that mean​
    12·2 answers
  • Which of the following quantities are unknown? initial separation of the particles final separation of the particles initial spe
    15·1 answer
  • Who Henry Mosléy?!!!​
    8·1 answer
  • Electromagnetic induction
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!