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
djyliett [7]
2 years ago
13

4. Provide an example of an isolated energy system and explain how it could be changed to create an open energy system. You may

use the examples provided in the lesson or another example.
Physics
2 answers:
levacccp [35]2 years ago
5 0

Answer:

Explanation:

Isolated energy system does not allow the energy or matter transfer, whereas, Open energy system allows energy and matter to exchange. For example, Insulated container (Thermos bottle), if the insulated bottle is filled with hot tea and the container is closed then there will be no exchange of matter and energy but as we open up the top of container then the heat will escape to the surrounding and exchange of matter and energy will take place.

GarryVolchara [31]2 years ago
4 0
<span>Easy, take the top off your Thermos bottle filled with hot coffee. Assuming perfect insulation, that hot coffee is isolated from the environment; but when the top is opened the heat can now escape to that environment.

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
</span>
You might be interested in
A planet moves fastest in its orbit around the sun when it is at which position?
Nesterboy [21]

Answer:

When it's closest to the sun.

Explanation:

The force of gravity acting on a planet is equal to its mass times its centripetal acceleration.

Fg = m v^2 / r

The force of gravity is defined by Newton's law of universal gravitation as:

Fg = mMG / r^2

Therefore:

mMG / r^2 = m v^2 / r

MG / r = v^2

v increases as r decreases.  So the planet is moving fastest when it's closest to the sun, also known as the <em>perihelion</em>.

6 0
3 years ago
Read 2 more answers
What mean by expansion effect of heat<br>​
pishuonlain [190]

Answer:

Explanation:

-Cambio de temperatura

Al calentar un cuerpo la temperatura aumenta

Es el efecto más inmediato del calor, el aumento de la temperatura. Al calentar un cuerpo, es habitual, aunque no siempre, que el cuerpo aumente de temperatura. El aumento dependerá de la cantidad de calor que se suministra, del tipo de sustancia y de su cantidad.

-Dilatación

Cuando un objeto se calienta, su volumen aumenta. Este fenómeno se llama dilatación térmica. Por el contrario, cuando un objeto se enfría, su volumen disminuye, debido a la contracción térmica.

Cuando se calienta un cuerpo, además de cambiar de estado o variar su temperatura, también cambia su tamaño, se dilata.

Por ejemplo, los puentes no se construyen de una única pieza, sino que suelen presentar uno o varios cortes longitudinales, las llamadas juntas de dilatación. Si no existieran esas juntas, los cambios de longitud del puente entre el invierno y el verano o entre el día y la noche acabarían por romperlo.

La dilatación de un cuerpo dependerá del aumento de temperatura que experimente, de su tamaño y de la sustancia de que esté hecho. Cuanto más aumente la temperatura más aumentará su tamaño, lo mismo que cuanto mayor sea, mayor se hará.

Todos los cuerpos, ya sean sólidos, líquidos o gaseosos, varían su tamaño cuando intercambian calor con otro cuerpo.

-Cambios de estado:

Si una sustancia modifica el estado de sólido, líquido o gaseoso, se produce un cambio de estado. Un cambio de estado es una modificación en la forma en que se disponen las partículas que constituyen una sustancia.

El estado en que se encuentre un cuerpo depende de la presión a la que está sometido y de su temperatura. Para cambiar su estado se debe modificar alguna de estas variables, o ambas. Al elevar la temperatura de una sustancia sólida, aumenta la agitación de sus partículas.

5 0
2 years ago
Read 2 more answers
Why are the very first stars thought to have been much more massive than the sun? (a the clouds that made them were much more ma
pashok25 [27]
I think the correct answer would be that the temperature of the clouds that made the very first stars where thought to be higher since the clouds are made up of hydrogen and helium. Hope this answers the question. Have a nice day.
8 0
2 years ago
Read 2 more answers
1. which of the following should be classified as a suspension?
Mumz [18]
Where are the answers to this question?
3 0
3 years ago
What is the measure of a specific material’s ability to insulate charges from each other?
Elodia [21]
B.dielectric constant
3 0
3 years ago
Read 2 more answers
Other questions:
  • . How far apart must two point charges of 75.0 nC (typical of static electricity) be to have a force of 1.00 N between them?
    5·1 answer
  • A box is given a push so that it slides across the floor. how far will it go given that the How far will it go, given that the c
    15·1 answer
  • If you could switch two movie characters, what switch would lead to the most inappropriate movies?
    5·1 answer
  • Not including thinking distance, lawful brakes must stop a car at 20 miles per hour within how many feet?
    13·2 answers
  • An object with a mass of 300 kg is
    11·2 answers
  • A yo-yo is made from two uniform disks, each with mass m and radius R, connected by a light axle of radius b. A light, thin stri
    12·1 answer
  • PLEASE HELP<br> The image characteristics are...
    15·1 answer
  • Please answer the question and show your working clearly.
    10·1 answer
  • Protons and neutrons in the nucleus are held together by what
    14·1 answer
  • Please i dont understand
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!