1. When is the kinetic energy of an electron transformed into potential energy?

when it interacts with other electrons, decreasing its speed

when it interacts with other electrons without changing its speed


2. Atoms bond to form molecules. Which structures or regions of the atoms interact in these bonds?

electric fields of particles with no charge

electric fields of particles with negative charge

electric fields of particles with opposite charges


3. In particle accelerators such as the one shown, fields are employed to separate different subatomic particles. What type or types of fields are employed, and what characteristics do these particles need to have in order to be separated?

Both electric and magnetic fields are applied. Particles need to be charged.

Electric fields are applied. Particles need to come from the same type of atom.


4. If two electrons that are apart get pushed toward each other, how does the repulsion between them change?

Initial repulsion is high and increases as they approach.

Initial repulsion is low and decreases as they approach.

Initial repulsion is high and decreases as they approach.

Initial repulsion is low and increases as they approach.

Answer:

B

Explanation:

The object with the most thermal energy is the choice B. This is because from the given choices, it has the most mass and highest temperature of all the bricks.

Thermal energy is the sum total of the average kinetic energy within the system.

It is mathematically expressed as:

    Quantity of energy  = mass   x  specific heat x  change in temperature

We see that the quantity of the thermal energy is directly proportional to mass and temperature changes.

Answer:

B. a 4 kg brick at 25 degrees Celsius

Explanation:

did the quiz <3

Mujhe nhi pata sorry. Lekin mai bhut logo ko jaanti hoon jo iss savaal ka jawaab de sakte hai.

Answer:

i think it is A

Explanation

Answer:

The  recoil velocity of the cannon is 2.38 m/s.

Explanation:

Given;

mass of cannonball, m₁ = 8 kg

mass of stationary cannon, m₂ = 1000 kg

initial velocity of the cannonball, u₁ = 300 m/s

initial velocity of the cannon, u₂ = 0

Let the recoil velocity of the cannon, = v

Apply the principle of conservation of linear momentum;

m₁u₁ + m₂u₂ = v(m₁ + m₂)

8(300) + 1000(0) = v(8 + 1000)

2400 = v(1008)

v = 2400/1008

v = 2.38 m/s

Therefore, the  recoil velocity of the cannon is 2.38 m/s.

Answer:

the molecules well speed up

Explanation:

Answer: As heat energy is added to the solid, the kinetic energy of the molecules increases and their vibrations speed up. The molecules move farther away from their fixed positions and farther away from each other.

Explanation:

Answer:

Kinetic Energy

Explanation:

Potential Energy is where something is building up energy to move.

Answer:

Kinetic Energy

Explanation:

Answer:

45

Explanation:

because the equation for speed is distance divided by time! hope that helps gave a nice day!

The speed of the group of students  is their total  distance divided by the time taken to travel. The speed to cover 90 miles in 2 hours is 45  miles/hour.

Speed is a physical quantity measuring the distance covered by an object within unit time. Speed is a scalar quantity. The rate of speed is called velocity. The unit of both quantities in common is m/s.

If an object covers more distance within small time, the object is said to have a greater speed. The speed of the object is the ratio of its change in distance to the change in time.

Given that, distance covered by the traveler = 90 miles

time taken = 10 -8 = 2 hours

speed = distance/ time

speed =90 miles /2hrs = 45 mph

Therefor, the average speed of the students  is 45 miles per hour.

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Answer: The greater an object's mass, the more gravitational force it exerts.

Explanation: So, to begin answering your question, Earth has a greater gravitational pull than the moon simply because the Earth is more massive. Sorry if I get this wrong. I am in 5th grade! ♥

The gravitational attraction between the Sun and Earth is stronger than the attraction between the Sun and the Moon, principally because of the Sun's greater mass and greater distance from Earth.

An object's mass affects how much gravitational pull it exerts. Both the Earth and the Moon are much less massive than the Sun. Approximately  330,000 times more massive than the Earth, and roughly 27 million times more massive than the Moon, is the Sun. Because of the Sun's greater mass, its gravitational pull is thus much stronger.

The strength of the gravitational force between two objects is greatly influenced by their distance from one another. The Sun and Earth are separated from one another by a far smaller distance than the Sun and Moon. The Sun is located roughly 150 million kilometers from Earth, while the Moon is located roughly 384,400 kilometers from the Sun on average. The inverse square law asserts that the gravitational force decreases with increasing distance, and that it is only one-fourth as strong when two objects are twice as far apart.

Hence, the gravitational force between the sun and earth is larger than the sun and the moon due the mass of the sun and earth is greater than the moon and sun. The distance between the sun and the earth is comparatively smaller than the distance between the sun and the moon.

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Answer:

6m/s²

Explanation:

Given parameters:

Initial velocity  = 35m/s

Final velocity  = 65m/s

Time taken  = 5s

Unknown:

Acceleration = ?

Solution:

Acceleration is the rate of change of velocity with time taken;

   Acceleration  = [tex]\frac{Final velocity - Initial velocity }{time}[/tex]  

So;

 Acceleration   = [tex]\frac{65 - 35}{5}[/tex]    = 6m/s²

Answer:

A. 64.0 J

Explanation:

Given parameters:

Spring constant  = 800N/m

Extension  = 0.4m

Unknown:

Work done  = ?

Solution:

The work done in a string is given as:

         Work done  = [tex]\frac{1}{2}[/tex] x 800 x 0.4²   = 64J

Answer:

The answer is C. Its not on mars and its not 10 football feilds its only 1

The International Space Station was  built from separate parts sent to space.

A sizable spacecraft in orbit orbiting the Earth is called the International Space Station. Crews of astronauts and cosmonauts reside there as a home. The space station serves as an exceptional science lab. The space station was created and used by international cooperation.

The components of the space station were put together by astronauts while they were in space. It travels around 250 miles above Earth's surface on its typical orbit. It has a speed of 17,500 mph. It therefore orbits the planet every 90 minutes. The space station is being used by NASA to learn more about surviving and operating in space. These discoveries will enable sending more people into space than ever before.

For the entire space station, there is no set ownership stake. Instead, each partner should maintain authority and control over the elements it registers and over employees in or on the Space Station who are its nationals, according to Article 5 of the IGA. As a result, only one partner holds sole control of each ISS module. However, the contracts for using the space station's amenities are more intricate.

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Answer:

q₂ = 0.0002 C

Explanation:

Given that,

Charge, q₁ = -0.0005 C

The force between two charges, F = 9 N

The distance between charges, d = 10 m

We need to find the magnitude of the second charge. The force acting between two charges is given by :

[tex]F=\dfrac{kq_1q_2}{r^2}\\\\q_2=\dfrac{Fr^2}{kq_1}\\\\q_2=\dfrac{9\times (10)^2}{9\times 10^9\times 0.0005}\\\\q_2=0.0002\ C[/tex]

So, the magnitude of the second charge is 0.0002 C.

Answer:

-They will be available for many years.

Explanation:

The advantage of using renewable resources is that they will be available for many years.

Renewable resources have very fast turn over time for replenishing, therefore, they are available over an extended period time.

They are not used by consumption and so they will continually be available. This is different from the non-renewable resources which are depleted as they are being used up.

Examples of renewable resources are wind, water and air

as we grow up we kinda experience some age staging so a teen got a lotta stuff going on they wanna be social active they be working on their popularity. so i guess thats it

Answer:

The moon its self does not generate life.

Explanation:

Moon phases are determined by the relative positions of the Moon, Earth, and Sun.  Instead, the Moon's phase depends only on its position relative to Earth and the Sun. The Moon doesn't make its own light, it just reflects the Sun's light as all the planets do. The Sun always illuminates one half of the Moon.

{ hope this helps T-T }

Storing music digitally requires less storage room than analog records or tapes. Digital music is easier to copy and the copies are the same as the original. The quality of the signal does not degrade over long periods of time.

Sample Response: Storing music digitally requires less storage room than analog records or tapes. Digital music is easier to copy and the copies are the same as the original. The quality of the signal does not degrade over long periods of time.

Answer:

evaporation to condensation to precipitation.

Answer:

evaporation to condensation to precipitation.

Explanation:

for each of them you need to type how they make you feel when you like need to make decision

Explanation:

Answer:

initial velocity (u)=0

final velocity (v)=80m/s

time(t)=5s

acceleration (a)=?

Explanation:

we have

v=u+at

80=0+a×5

5a=80

a=80/5=16m/s²

Answer:

15m/s²

Explanation:

Given parameters:

Initial velocity  = 10m/s

Final velocity  = 40m/s

Time taken  = 2s

Unknown:

Average acceleration  = ?

Solution:

Acceleration is the rate of change of velocity with time;

 Acceleration  = [tex]\frac{Final velocity - Initial velocity }{time}[/tex]  

  Acceleration = [tex]\frac{40 - 10}{2}[/tex]    = 15m/s²

Answer:

C. The diameter of a wire

Explanation:

A micrometer screw gauge is a device used for the measurement of small dimensions which may not be measured accurately by the use of a vernier caliper, e.g diameter of a thin wire. it has a high degree of accuracy.

From the given option in the question, the measurement that can be made using a micrometer screw gauge is the diameter of a wire

The measurement that should be used via using the micrometer screw gauge is option  C. The diameter of a wire

It is the device that should be used for measuring the small dimension that should not be measured in an accurate way via the use of an vernier caliper. Also, it contains the high accuracy degree. So the measurement should not be done by turning effect, microwaves wavelength, tyre air pressure

Therefore, the option c is correct.

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Answer:

C. It is the result of diffraction

Explanation:

I just took the test

Answer:

C

1.2.5

trust me i just did it

Explanation:

Answer:

Opera seria,

Explanation:

Answer:

When a physical change in a sample occurs, composition of the sample does not change. It stays the same. It stays the same. Also, the properties of the sample will still be the same