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
Anvisha [2.4K]
3 years ago
6

Which term describes a substance that has a low melting point and poor electrical conductivity?

Physics
1 answer:
densk [106]3 years ago
4 0

Answer:Simple Covalent substance

Explanation:Simple covalent substance describes a substance that has a low melting point and poor electrical conductivity because:

(1)melting point :For the covalent bond and intermolecular force that are present in a simple covalent substance,energy is needed to break the forces of attraction present. In the simple covalent substance, little energy is needed because the intermolecular forces present are broken because they are weaker compared to the covalent bond present.

Therefore, when simple covalent substance melts,only the intermolecular forces are broken leaving only the covalent bond in the substance.

(2) poor conductivity: for a substance to conduct electricity,it must have charged particles which are free to move to and fro.

But in the simple covalent substance,there are no charged particles that can be separated due to the covalent bond present in simple covalent substance.

You might be interested in
The Kyoto protocol works by _______.
Lapatulllka [165]
The answer is voluntary involvement! :D Welcome
7 0
3 years ago
Read 2 more answers
A 45-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is 1.1 m/s. Neglect air resistan
Lubov Fominskaja [6]

The altitude or height of the pole vaulter as she crosses the bar is 4.04 m.

<h3>What is the height of the pole vaulter?</h3>

The height of the pole vaulter is determined from the change in kinetic energy which is equal to the potential energy at that height.

  • Potential energy = Change in kinetic energy
  • mgh = m(v - u)²/2

h = (v - u)²/2g

h = (10 - 1.1)²/2 * 9.8

h = 4.04 m.

In conclusion, the height is determined from the potential energy at that height.

Learn  more about potential energy at: brainly.com/question/14427111

#SPJ1

7 0
1 year ago
Presuming you have a closed circuit, when you thrust a bar magnet to and fro into a coil of wire, you induce:________.
Art [367]
Hedndjf Hinduism’s jeirbduddn dudurnidkd idbehdududid idjdjdudud idjdbdudud idisjdbdbd
7 0
2 years ago
What is Electromagnet?<br><br> What is Voltage?
vampirchik [111]

Answer: a core of magnetic material

Explanation:

A core of magnetic material surrounded by a coil of write through which an electric current is passed to magnetize the core

8 0
3 years ago
A soccer player takes a cor- ner kick, lofting a stationary ball 35.0° above the horizon at 22.5 m/s. If the soccer ball has a m
liberstina [14]

Answer:

(a)

x=7.83 Kgm/s

y=5.48 Kgm/s

(b)

191.25 N

Explanation:

(a)

Change in momentum in x direction

P_{x}=mvcos\theta where m is mass and v is the velocity and \theta is the angle of kick  

Substituting m=0.425 Kg, v=22.5m/s and \theta=35^{o}

P_{x}=0.425*22.5*cos 35= 7.833141424

P_{x}=7.83 Kgm/s

Change in momentum in y direction

P_{y}=mvsin\theta

P_{y}=0.425*22.5*sin 35= 5.484824673

P_{y}=5.48 Kgm/s

(b)

Force exerted by the player

F=mv/t where t is time

Substituting t=5*10^{-2} s

F=(0.425*22.5)/0.05= 191.25 N

8 0
3 years ago
Other questions:
  • An electron with a speed of 0.965 c is emitted by a supernova, where c is the speed of light. What is the magnitude of the momen
    6·2 answers
  • Which solute will dissolve first in the illustration?
    15·1 answer
  • A plane lands on a runway with a speed of 115 m/s, moving east, and it slows to a stop in 13.0 s. What is the magnitude (in m/s2
    15·1 answer
  • A force gives a 2.0 kg mass an acceleration of 5.0 m/s2 on a level surface. What is the force applied to the mass?
    8·1 answer
  • A transformation of ΔSTV results in ΔUTV. Which transformation maps the pre-image to the image?
    13·2 answers
  • A body moves in a straight line. At time, it's acceleration is given by a = 12t + 1. When t =0, the velocity of the body v is 2
    5·1 answer
  • Which does the big bang theory describe? a cool, dark singularity the origin of the universe the contraction of the universe an
    11·2 answers
  • a 700k/g race car slowed down from 30m/s to 15m/s what is the impulse and what was the average force applied by the brakes
    7·1 answer
  • Which of the following is the equation for calculating daily caloric needs? A. BMR calories + Digestion calories B. BMR calories
    8·2 answers
  • .
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!