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
alexandr402 [8]
3 years ago
7

Calculate the number of moles of water molecules in 12 dm' of watervapour at STP.​

Physics
1 answer:
Vinvika [58]3 years ago
4 0

Answer:

22.4 \:  {dm}^{3}  \: are \: occupied \: by \: 1 \: mole \\ 12 \:  {dm}^{3}  \: will \: be \: occupied \: by \: (  \frac{12}{22.4} ) \: moles \\  = 0.536 \: moles

You might be interested in
The number of moons a planet has orbiting around it is determined by...
Pavlova-9 [17]

We have no idea.  There are probably many things involved ... the planet's mass,
the availability of small bodies in the neighborhood that can be captured, etc.


7 0
3 years ago
Describe the Earth's rotation around the Sun
satela [25.4K]
The Earth's orbit is the path through which the Earth travels around the sun. A complete orbit occurs every 365.256 days, where the Earth is traveling at 940 million km during a single orbit.
8 0
3 years ago
Does the car's<br> speed alone<br> determine<br> whether the egg<br> breaks?
blsea [12.9K]

Answer:

yes it is

Explanation:

when the speed increases the car will vibration than egg will breaks

4 0
2 years ago
Read 2 more answers
How do radios work?
ycow [4]

Answer:

radios work when electrons are speeding up and dow the attena, patters structure and shape make music pleasing to hear. (more info below)

Explanation:

a radio works when electrons are speeding up and down the antenna, sending out electromagnetic waves. Radiation waves travel through the air at the speed of light. When the radio waves reach the antenna, the electrons vibrate within the antenna and reproduce the initial signal. to make music pleasing to hear it has to have patterns, structure, shape.

hope this helped!

6 0
3 years ago
A 500 kg object is hanging from a spring attached to the ceiling. If the spring constant in the spring is 900 N/kg, how far does
My name is Ann [436]

We are given that a 500 kg object is hanging from a spring. To determine the amount the spring is stretched we will use Hook's law, which states the following:

F=kx

Where:

\begin{gathered} F=\text{ force} \\ k=\text{ spring constant} \\ x=\text{ distance stretched} \end{gathered}

Since the object is hanging the only force acting on the spring is the weight of the object. The weight of the object is:

F_g=mg

Where:

\begin{gathered} m=\text{ mass} \\ g=\text{ acceleration of gravity} \end{gathered}

Plugging in the values we get:

F_g=(500\operatorname{kg})(9.8\frac{m}{s^2})

Solving the operations:

F_g=4900N

Now we solve for "x" from Hook's law by dividing both sides by "k":

\frac{F}{k}=x

Now we plug in the known values:

\frac{4900N}{900\frac{N}{m}}=x

Solving the operations:

5.4m=x

Therefore, the spring is stretched by 5.4 meters.

7 0
1 year ago
Other questions:
  • magnitude of velocity does not change but the direction changes. Can we say that it is an accelerated motion?
    15·1 answer
  • I really need help on this one no clue
    5·1 answer
  • What is the acceleration of this object? The object's mass is 60 kg.
    13·2 answers
  • A glass object receives a positive charge of +3 nC by rubbing it with a silk cloth. In the rubbing process have protons been add
    14·1 answer
  • If a force of 24 N is applied to an object with a mass of 5 kg, the object will accelerate at _____ m/s2
    12·1 answer
  • Negative charges can move from one insulator to another.<br> True<br> False
    6·1 answer
  • What is required for an electromagnet to produce a magnetic field that is
    11·2 answers
  • A reaction occurs in which carbon combines with oxygen to form carbon dioxide. Is this a chemical reaction or a nuclear reaction
    14·2 answers
  • KE=0.5.m.v2 or PE=m.g.h
    11·2 answers
  • The left side of the lever was forced down 10 inches in order to raise the rock 7 inches. The ideal mechanical advantage is
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!