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
Likurg_2 [28]
3 years ago
6

What are the products of coal​

Physics
2 answers:
Sonja [21]3 years ago
4 0

Answer:

coal tar is one of the product of coal

julsineya [31]3 years ago
4 0
Coal tar is one of the main ones or products of coal
You might be interested in
In metal wires the charged particles that move are A. protons B. electrons C. neutrons D. none of the above
VashaNatasha [74]

Answer:

the answer is B: electrons

Explanation:

4 0
4 years ago
Read 2 more answers
A proton is released from rest at the positive plate of a parallelplatecapacitor. It crosses the capacitor and reaches the negat
Triss [41]

Answer:

2.1406 ×10^6 m/sec

Explanation:

we know that energy is always conserved

so from the law of energy conservation

qV=\frac{1}{2}mv^2

here V is the potential difference  

we know that mass of proton = 1.67×10^{-27} kg

we have given speed =50000m/sec

so potential difference V=\frac{\frac{1}{2}\times 1.67\times 10^{-27}50000^2}{1.6\times 10^{-19}}=13.045

now mass of electron =9.11×10^{-31}

so for electron

\frac{1}{2}\times 9.11\times 10^{-31}v^2=1.6\times 10^{-19}\times 13.045=2.1406\times 10^6 m/sec

so the velocity of electron will be 2.1406×10^6 m/sec

4 0
3 years ago
Give the molecular explanation of of surface tension
NeX [460]

Explanation:

The surface tension of a liquid results from an imbalance of intermolecular attractive forces, the cohesive forces between molecules: A molecule in the bulk liquid experiences cohesive forces with other molecules in all directions. A molecule at the surface of a liquid experiences only net inward cohesive forces.

7 0
2 years ago
22. What is the length of a pendulum that has a period of 0.500 s?
sergeinik [125]

6.21 cm

  • use the pendulum formula : \sf \bold{\mathrm{T}=2 \pi \sqrt{\frac{\mathrm{L}}{\mathrm{g}}}}

where

  • T is time or period
  • π is pie = 22/7
  • L is pendulum length
  • g is acceleration due to gravity

Given:

  • T = 0.500 s
  • g = 9.8 m/s²

solving step-wise:

\dashrightarrow \mathrm{T}=2 \pi \sqrt{\dfrac{\mathrm{L}}{\mathrm{g}}}

\sf \dashrightarrow \mathrm{0.5}=2 \pi \sqrt{\dfrac{\mathrm{L}}{\mathrm{9.8}}}

\dashrightarrow \mathrm{\dfrac{0.5}{2 \pi } }=\sqrt{\dfrac{\mathrm{L}}{\mathrm{9.8}}}

\dashrightarrow\sqrt{\dfrac{\mathrm{L}}{\mathrm{9.8}}}= \mathrm{\dfrac{0.5}{2 \pi } }

\sf \dashrightarrow{\dfrac{\mathrm{L}}{\mathrm{9.8}}}= (\mathrm{\dfrac{0.5}{2 \pi } })^2

\sf \dashrightarrow{{\mathrm{L}}= (\mathrm{\dfrac{0.5}{2 \pi } })^2*9.8

\sf \dashrightarrow{{\mathrm{L}}=0.06205922 \ m

  • 1 m → 100 cm

\sf \dashrightarrow{{\mathrm{L}}=6.2059\ cm

\sf \dashrightarrow{{\mathrm{L}}=6.21\ cm             { rounded to nearest hundredth }

6 0
2 years ago
Read 2 more answers
HELP WILL MARK BRAINIEST!!!
KatRina [158]
The answer is B okay???
6 0
3 years ago
Other questions:
  • The centers of two 15.0 kg spheres are separated by 3.00 m. The magnitude of the gravitational force between the two spheres is
    10·1 answer
  • Please help me! Science is not my best subject
    14·1 answer
  • Why doesn’t the Moon crash into the Earth or the Earth crash into the Sun?
    7·2 answers
  • How to write my self in French​
    10·1 answer
  • Since the density of air decreases with an increase in temperature, but the bulk modulus B is nearly independent of temperature,
    14·1 answer
  • A force acts on a 5kg object at rest. How fast will the object accelerate on a frictionless surface?
    14·1 answer
  • The rock in the picture is pushed over the edge and it begins to falls. Which type of energy conversion is taking place?
    7·2 answers
  • Please help with this question !!!!!
    7·1 answer
  • Building Vocabulary
    13·1 answer
  • A. 65-year old emmetrope wearing +2.50D readers has a near point of accommodation of 25 cm. what is the near point accommodation
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!