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
vovangra [49]
3 years ago
13

Using the vocabulary words we have learned so far in this unit, describe what happens when something warms up.

Physics
2 answers:
Sidana [21]3 years ago
4 0
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increase. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.
Lunna [17]3 years ago
4 0
The answer is molecule
You might be interested in
Absorbed energy is said to be quantized. This means:____________ a) Energy is absorbed only by valence electrons. b) Energy caus
wlad13 [49]

Answer:Energy is absorbed in exact amounts that correspond to differences in energy levels.

Explanation:

According to Bohr's theory, an electron moves from a lower to a higher energy level when it absorbed photon of a given energy. The energy of the photon absorbed must be equal to the energy difference between the higher and lower energy level. Thus energy is absorbed only in discreet amounts that correspond to differences in energy levels. Absorption of energy in discreet amounts is what is meant by the term 'quantization'.

4 0
3 years ago
Calculate the electric field at the center of a square
pantera1 [17]

Answer:

E_y=1175510.2\ N.C^{-1}

The Magnitude of electric field is in the upward direction as shown directly towards the charge q_1.

Explanation:

Given:

  • side of a square, a=52.5\ cm
  • charge on one corner of the square, q_1=+45\times 10^{-6}\ C
  • charge on the remaining 3 corners of the square,q_2=q_3=q_4=-27\times 10^{-6}\ C

<u>Distance of the center from each corners</u>=\frac{1}{2} \times diagonals

diagonal=\sqrt{52.5^2+52.5^2}

diagonal=74.25\cm=0.7425\ m

∴Distance of center from corners, b=0.3712\ m

Now, electric field due to charges is given as:

E=\frac{1}{4\pi\epsilon_0}\times \frac{q}{b^2}

<u>For charge q_1 we have the field lines emerging out of the charge since it is positively charged:</u>

E_1=9\times 10^9\times \frac{45\times 10^{-6}}{0.3712^2}

  • E_1=2938775.5\ N.C^{-1}

<u>Force by each of the charges at the remaining corners:</u>

E_2=E_3=E_4=9\times 10^9\times \frac{27\times 10^{-6}}{0.3712^2}

  • E_2=E_3=E_4=1763265.3\ N.C^{-1}

<u> Now, net electric field in the vertical direction:</u>

E_y=E_1-E_4

E_y=1175510.2\ N.C^{-1}

<u>Now, net electric field in the horizontal direction:</u>

E_y=E_2-E_3

E_y=0\ N.C^{-1}

So the Magnitude of electric field is in the upward direction as shown directly towards the charge q_1.

8 0
3 years ago
17.
Oliga [24]
I think potential but im not sure
8 0
2 years ago
Just after two identical point charges are released when they are a distance D apart in outer space, they have an acceleration a
Darya [45]

Answer:

d) 4a

Explanation:

r = Distance

Electrostatic force is given by

F=\dfrac{kq_1q_2}{r^2}

ma=\dfrac{kq_1q_2}{r^2}

It can be seen that the force is inversely proportional to distance

a\propto \dfrac{1}{r^2}

If the distance is reduced

\dfrac{a_1}{a_2}=\dfrac{r_2^2}{r_1^2}\\\Rightarrow \dfrac{a_1}{a_2}=\dfrac{(\dfrac{d}{2})^2}{d^2}\\\Rightarrow \dfrac{a_1}{a_2}=\dfrac{1}{4}\\\Rightarrow a_2=4a_1

So, the new acceleration will be four times the old acceleration

The answer is d) 4a

7 0
4 years ago
Entific findings are useful
Kaylis [27]

That's true.  The give-away is "observation ... in the real world".  That's what "field reports" are.

The part I'm not so sure about is those "entific findings".

4 0
3 years ago
Other questions:
  • You are camping with Joe and Karl. Since all three of you like your privacy, you don’t pitch your tents close together. Joe’s te
    9·1 answer
  • Which letter represents the direction of the centripetal force?
    13·1 answer
  • What are the variables in Gay-Lussac's law? pressure and volume pressure, temperature, and volume pressure and temperature volum
    7·2 answers
  • A moving object has a kinetic energy of 20 J. if it’s velocity doubles, it’s kinetic energy would be
    7·1 answer
  • What is a scientific law
    6·1 answer
  • What unit of length is most suitable for measuring the thickness of a cell phone
    13·1 answer
  • What is the Genetic Modification Process?<br><br><br>Brainlyist for the best answer
    14·2 answers
  • 9. When a balloon rises into the air, it
    8·1 answer
  • Please help me out with this.
    8·1 answer
  • Which of the following is a graph of the velocity of an object as it falls fromrest if drag is not ignored? Explain your choice
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!