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
mina [271]
4 years ago
9

All sound is produced by: vibrations color a vacuum light

Chemistry
2 answers:
netineya [11]4 years ago
6 0

Answer:

vibrations

Explanation:

GalinKa [24]4 years ago
5 0
Vibrations of a medium
You might be interested in
If a radius of a circle is 7 cm, what is its perimeter?<br>please explain in full detail...​
storchak [24]

Explanation:

perimeter of circle - 2pieR

- pie D

radius R - 7 cm

perimeter- 2×22/7×7 (7 and 7 got cancalled)

2×22

44 cm

7 0
4 years ago
a sample of gas initially occupies 5.50 liter at a pressure of 0.750 atm at 13.0 C. what will the temperture change to 22.5 C an
sergey [27]

Answer:

The pressure will be 2.84 atm

Explanation:

The gas laws are a set of chemical and physical laws that allow us to determine the behavior of gases in a closed system. The parameters evaluated in these laws are pressure, volume, temperature and moles.

Boyle's law indicates that the volume is inversely proportional to the pressure: if the pressure increases, the volume decreases and if the pressure decreases, the volume increases. Boyle's law is expressed mathematically as:

P * V = k

On the other hand, Charles's law indicates that with increasing temperature, the volume of the gas increases and with decreasing temperature, the volume of the gas decreases. That is, they are directly proportional. This is expressed mathematically as:

\frac{V}{T} =k

Finally, the Gay-Lussac law says that at constant volume, the pressure of the gas is directly proportional to its temperature. Mathematically, it is expressed as:

\frac{P}{T} =k

Combined law equation is the combination of three gas laws called Boyle's, Charlie's and Gay-Lusac's law:

\frac{P*V}{T}=k

When you want to study two different states, an initial and a final one of a gas, you can use the following expression:

\frac{P1*V1}{T1}=\frac{P2*V2}{T2}

In this case:

  • P1= 0.750 atm
  • V1= 5.50 L
  • T1= 13 C= 286 K (being 0 C=273 K)
  • P2=?
  • V2= 1.50 L
  • T2= 22.5 C=295.5 K

Replacing:

\frac{0.750 atm*5.50 L}{286 K}= \frac{P2*1.50 L}{295.5 K}

Solving:

P2=\frac{295.5K}{1.50L} *\frac{0.750 atm*5.50 L}{286 K}

P2= 2.84 atm

<u><em>The pressure will be 2.84 atm</em></u>

8 0
4 years ago
WILL REWARD BRAINLIEST
romanna [79]
Reaching 29,029 feet (8,848 meters) above sea level, Mount Everest is the highest mountain on Earth. Located in the Mahalangur section of the Himalayas, the mountain's summit straddles the border separating China and Nepal.

Or if you want a more literary description, try some devices to describe it i.e what's there, the atmosphere, the height/gradient etc.
5 0
3 years ago
Read 2 more answers
Which of these scales rates earthquake damage at a particular location? A. Focus B.Modified Mercalli C. Richter D. Moment magnit
allochka39001 [22]
The answer is C. Richter
the Richter scale is used to determine the magnitude of any earthworks
8 0
3 years ago
How many unpaired electrons does neon have
lidiya [134]
P has three unpaired electrons
7 0
3 years ago
Other questions:
  • Which of the following definitions describes a chemical hazard?
    8·2 answers
  • The half-life of carbon-14 is about 6000 years. assume that a sample of charcoal is formed by burning of living wood 15,000 year
    10·1 answer
  • What pressure in atmospheres(atm) is equal to 45.6 kPa?
    14·1 answer
  • Write the chemical formula and Lewis structure of the following, each of which contains five carbon atoms:
    9·1 answer
  • Which of these causes the release of neurotransmitter molecules?
    7·2 answers
  • A neutron has approximately the same mass as
    11·2 answers
  • Using the periodic table, determine the number of PROTONS for the element Li<br>​
    12·1 answer
  • FeS + ….HNO3 …….……..+ ….H2SO4 + ….NO + ……….
    6·1 answer
  • Yo yuh guys know this
    7·1 answer
  • What is called a measurement and does involve a number and unit in chemistry?​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!