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
DedPeter [7]
2 years ago
9

Identify the electrical properties of materials that are highly conductive and those that are used in insulation. Use one or two

sentences to complete your answer
Physics
1 answer:
Katena32 [7]2 years ago
6 0

Answer:

This question is incomplete

Explanation:

However, materials that are highly conductive have the capacity to allow heat and electricity to pass through them. This occurs because they have electrons that flow easily in them, these electrons serve as carriers of heat and electric current in these materials. It should be noted here that not only solid metals (like silver, aluminium and copper) are good conductors of electricity, liquid solution such as aqueous NaCl are also good conductors of electricity because of the same movement of electrons (which is being transferred during bonding as charges) in the liquid.

Invariably, materials that are poor conductors of heat and electricity do not have electrons moving freely in them. Examples are sand, rubber and plastic.

You might be interested in
How long does it take for a train to increase its velocity from 10m/s to 40m/s if it accelerates at 3 m/s
DIA [1.3K]

Answer:

Explanation:

Givens

Vi = 10 m/s

Vf = 40 m/s

a = 3 m/s^2

Formula

a = (vf - vi) /t              Substitute the givens into this formuls

Solution

3 = (40 - 10) / t          Multiply both sides by t

3*t = t(40 - 10)/t        Combine. Cancel t's on the right

3*t = 30                     Divide by 3

3t/3 = 30 / 3

Answer: t = 10 seconds.

6 0
2 years ago
1) A thin ring made of uniformly charged insulating material has total charge Q and radius R. The ring is positioned along the x
allochka39001 [22]

Answer:

(A) considering the charge "q" evenly distributed, applying the technique of charge integration for finite charges, you obtain the expression for the potential along any point in the Z-axis:

V(z)=\frac{Q}{4\pi (\epsilon_{0}) \sqrt{R^{2} +z^{2}}  }

With (\epsilon_{0}) been the vacuum permittivity

(B) The expression for the magnitude of the E(z) electric field along the Z-axis is:

E(z)=\frac{QZ}{4\pi (\epsilon_{0}) (R^{2} +z^{2})^{\frac{3}{2} }    }

Explanation:

(A) Considering a uniform linear density λ_{0} on the ring, then:

dQ=\lambda dl (1)⇒Q=\lambda_{0} 2\pi R(2)⇒\lambda_{0}=\frac{Q}{2\pi R}(3)

Applying the technique of charge integration for finite charges:

V(z)= 4\pi (ε_{0})\int\limits^a_b {\frac{1}{ r'  }} \, dQ(4)

Been r' the distance between the charge and the observation point and a, b limits of integration of the charge. In this case a=2π and b=0.

Using cylindrical coordinates, the distance between a point of the Z-axis and a point of a ring with R radius is:

r'=\sqrt{R^{2} +Z^{2}}(5)

Using the expressions (1),(4) and (5) you obtain:

V(z)= 4\pi (\epsilon_{0})\int\limits^a_b {\frac{\lambda_{0}R}{ \sqrt{R^{2} +Z^{2}}  }} \, d\phi

Integrating results:

V(z)=\frac{Q}{4\pi (\epsilon_{0}) \sqrt{R^{2} +z^{2}}  }   (S_a)

(B) For the expression of the magnitude of the field E(z), is important to remember:

|E| =-\nabla V (6)

But in this case you only work in the z variable, soo the expression (6) can be rewritten as:

|E| =-\frac{dV(z)}{dz} (7)

Using expression (7) and (S_a), you get the expression of the magnitude of the field E(z):

E(z)=\frac{QZ}{4\pi (\epsilon_{0}) (R^{2} +z^{2})^{\frac{3}{2} }    } (S_b)

4 0
3 years ago
Which of the following is defined as an area of the body surface that is innervated by a single spinal​ nerve?
romanna [79]

Answer:

Dermatome. (Ans. C).

Explanation:

Dermatome is defined as the area of the human anatomy skin which is supplied by single spinal sensory nerve root. At the spinal cord these spinal sensory nerve enter the nerve root, and the branches of spinal sensory reach to the periphery of the body.

The sensory nerve which is present in the periphery of the body are the type of nerve which helps to transmit signals from sensation such as pain, temperature, etc. to the spinal cord from some specific area of the anatomy.

3 0
3 years ago
An atom has a mass of 24 and a nuclear charge of 12. Which statement about the atom is accurate?
Oksana_A [137]

The correct answer is It has equal numbers of neutrons and protons.

A characteristic that can be physically determined, the atomic mass of an atom is equal to the total mass of the protons, neutrons, and electrons that make up the atom. The number of protons in the atom's nucleus is indicated by the atomic number. It is equal to the atomic number in value. Moving over the periodic table causes the nuclear charge to grow. The charge is filled when the electrons approach the protons.

The protons and neutrons of an atom are added to determine the mass number. Therefore, the mass number for each atom will be twice the atomic number (number of protons) if the number of protons (atomic number) and neutrons are identical.

To learn more about  protons and neutrons refer the link:

brainly.com/question/13119648

#SPJ9

5 0
1 year ago
Technician A says that in order for a planetary gearset to change the ratio and transmit torque, there must be an input and a re
Mnenie [13.5K]

Answer: C both A and B

Explanation:

Transmission : This simply implies the difference in rotation speed between the input shaft and output shaft. Note that higher gear ratios are used to transfer more torque, of which lower ratios trade torque is in favor of speed. Technician A was right

The primary functions of the transmission includes transmitting of the engines crankshaft into a more usable rotational speed and to multiply the torque of the engine's output. Hence,

Technician B was also right.

8 0
2 years ago
Other questions:
  • You stare at a bright red screen for so long that your red cones become saturated and no longer function. The red screen is then
    6·2 answers
  • What is the relationship between the frequency and the pitch of a sound?
    14·2 answers
  • Why do scientist use different types of models to represent compounds
    5·1 answer
  • Mr. Nakamora wants to test the accuracy of an old balance in his classroom compared to a brand-new balance that he knows is accu
    14·2 answers
  • Which research method uses questionnaires to collect information about the participants in a study?
    5·2 answers
  • Newton's first law of motion states that an object will keep a constant speed and direction unless acted upon by an unbalanced f
    5·2 answers
  • Planet a has three times the mass of planet b and the same radius. from this information, what can we conclude about the acceler
    5·1 answer
  • To collect quantitative data, scientists use all of the following except _____.
    10·2 answers
  • What do signal trainees do
    12·1 answer
  • "Force" can be defined as a push or a<br> O pull<br> O grab
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!