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
DiKsa [7]
3 years ago
13

If you have charged an electroscope by contact with a positively charged object, describe how you could use it to determine the

charge of other objects. Specifically, what would the leaves of the electroscope do if other charged objects were brought near its knob?
Physics
1 answer:
maxonik [38]3 years ago
7 0

Explanation:

  • When we have a pre-charged electroscope that is charged using a positive object then we observe that the leaves of the electroscope are spread wide in the diverging position due to the like charges of positive nature on the two leaves.
  • As we know that the charges can only travel through the conductors hence the assembly of the electroscope from the contact knob to the leaves is made of conductor. So the charges spread uniformly on this conductor.
  • Now we can use this as a tester of the other charges. When we bring a negatively charged object near the knob of the electroscope then the opposite charges i.e. positive charges accumulate near the knob due to attraction and the leaves of the electroscope go unstrained and get closer naturally.
  • Contrarily when a positive charge is brought near the knob of the electroscope then the the uniformly distributed charges move away from the knob and accumulate at the farthest point and more deviation is observed on the leaves.
You might be interested in
Speedy Sue, driving at 32.0 m/s, enters a one-lane tunnel. She then observes a slow-moving van 170 m ahead traveling with veloci
yarga [219]

Answer:

10.89 seconds

229.895 m

Explanation:

Distance van travels

x_v=170+5.5t+\dfrac{1}{2}0t^2\\\Rightarrow x_v=170+5.5t

Position of car

x_c=0+32t+\dfrac{1}{2}-2t^2\\\Rightarrow x_c=32t-t^2

They are equal

170+5.5t=32t-t^2\\\Rightarrow 17+5.5t-32t+t^2\\\Rightarrow t^2-26.5t+170=0\\\Rightarrow 10t^2-265t+1700=0

t=\frac{-\left(-265\right)+\sqrt{\left(-265\right)^2-4\cdot \:10\cdot \:1700}}{2\cdot \:10}, \frac{-\left(-265\right)-\sqrt{\left(-265\right)^2-4\cdot \:10\cdot \:1700}}{2\cdot \:10}\\\Rightarrow t=15.6, 10.89\ s

The collision occurs at 10.89 seconds

x_v=170+5.5\times 10.89\\\Rightarrow x_v=229.895\ m

Collision occurs at 229.895 m from the starting point

5 0
3 years ago
Your boss tells you that she needs a decision by the end of the day about the machine you want to purchase for your new operatio
IrinaK [193]
Option 4 is your best answer, or letter B, because it has better work efficiencies than the other options and has a price that is in the middle of too costly and cheap,

hope this answer helps you out
5 0
4 years ago
On which side of a house in Texas should a window be placed so that the people inside the house can see
Arturiano [62]

Answer:

East!

I live in Texas and I hope this helps.

Explanation:

5 0
3 years ago
Read 2 more answers
An immense body of air characterized by similar properties at any given altitude is known as _____.
sertanlavr [38]

Answer:Air Mass

Explanation:

6 0
3 years ago
Read 2 more answers
A centrifuge in a medical laboratory rotates at an angular speed of 3,500 rev/min, clockwise (when viewed from above). When swit
Ratling [72]

Answer:

The magnitude of angular acceleration is 232.38\ rad/s^2.

Explanation:

Given that,

Initial angular velocity, \omega_i=3500\ rev/min=366.5\ rad/s

When it switched off, it comes o rest, \omega_f=0

Number of revolution, \theta=46=289.02\ rad

We need to find the magnitude of angular acceleration. It can be calculated using third equation of rotational kinematics as :

\omega_f^2-\omega_i^2=2\alpha \theta\\\\\alpha =\dfrac{-\omega_i^2}{2\theta}\\\\\alpha =\dfrac{-(366.51)^2}{2\times 289.02}\\\\\alpha =-232.38\ rad/s^2  

So, the magnitude of angular acceleration is 232.38\ rad/s^2. Hence, this is the required solution.

6 0
3 years ago
Other questions:
  • Your car and the trailer it is towing are initially at rest. you apply an acceleration of 1.75 m/s2 to get the vehicles moving.
    13·1 answer
  • Electromagnetic waves are different from other types of waves because they can travel through?
    6·2 answers
  • A car with a mass of 950 kg is tied to a crane by a strong cable and being lowered at a rate of 1.2 m/s2. Draw a free-body diagr
    11·1 answer
  • Which of the following is NOT true about a pool of water and a piece of ice? A They have the same composition. B They are in dif
    8·2 answers
  • WILL GIVE BRAINLIEST!
    9·2 answers
  • What does the root word “-them” mean
    12·2 answers
  • If the_____of a wave increases, its frequency must decrease.
    5·1 answer
  • According to the Declaration of Independence, all people are created in what manner?
    9·2 answers
  • What is the value of x if x-36=5?​
    13·1 answer
  • Most interstellar clouds are: Most interstellar clouds are: much bigger than our solar system. similar in size to clouds in Eart
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!