Answer:
il get back to you soon with the answer
Explanation: need to eat lunch
The negative electrons are in motion around the positive nucleus to which they are attracted is true related to atom. Thus option a is correct.
What are atoms?Atoms are defined as the smallest unit into which matter can be divided without the release of electrically charged particle.
It is also defined as a building block of all the matter, created after big bang theory.
Electrons are defined as a negatively charged subatomic particles that together with protons and neutrons form an atoms nucleus.
Nucleus are defined as the central region of an atom where the majority of masses are concentrated and contains protons and neutrons.
Thus, the negative electrons are in motion around the positive nucleus to which they are attracted is true related to atom. Thus option a is correct.
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Answer 1-8
(ANSWER THE WHOLE THING AND NOT JUST 1-2 QUESTIONS)
1. D
2. C
3. A
4. B
5. D
6. B
7. C
8. A
general properties shared by all waves.
Answer:
All kinds of waves have the same fundamental properties of reflection, refraction, diffraction and interference, and all waves have a wavelength, frequency, speed and amplitude.
What is convection?
a Transfer of heat through objects touching the source
b Transfer of heat through direct physical contact
c Transfer of heat through electromagnetic waves
d Transfer of heat through the movement of particles
Answer:
d transfer of heat through the movement of particles
The correct answer is option d: Transfer of heat through the movement of particles. Convection is a mode of heat transfer that occurs through the movement of particles.
Convection is the transfer of heat through the movement of particles in a fluid, such as a gas or liquid. Option (d) is the correct answer. Convection occurs when a temperature difference exists within the fluid, causing the hotter particles to become less dense and rise while the cooler particles sink. This movement creates a circulation pattern known as convection currents. Convection is a significant mechanism for heat transfer in various natural and man-made systems. For example, when a pot of water is heated on a stove, the bottom of the pot gets hot, causing the water near the bottom to heat up and expand. This hot water rises to the top, transferring heat to the surrounding cooler water. As a result, the water circulates in a convection current, leading to a more uniform distribution of heat. Convection is also responsible for phenomena like ocean currents, atmospheric circulation, and even the formation of thunderstorms. It plays a crucial role in distributing heat within the Earth's atmosphere and oceans, impacting weather patterns and climate.
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2. Record your observations about what happens to a wave when it reaches the boundary between two media.
the wave bounces back off the first media and returns to it origanal resting place
Explanation:
Which of the following best describes a suspension?
A.
A mixture whose components are evenly distributed throughout.
B.
A mixture whose components will settle out over time.
C.
A mixture whose components will not separate over time but does not form a solution.
D.
A mixture whose components consist of a liquid dispersed in another liquid but does not separate over time.
Answer:
A mixture whose components are evenly distributed throughout.
When an object is moving on a surface with a lot of texture, how does this affect the amount of friction created?
The friction is stopped.
Less friction is created.
More friction is created.
The amount of friction is the same.
Whats the effect of this?
A wave enters a medium where its wave speed is slower.
Answer:
Wave speed, frequency and wavelength in refraction
Although the wave slows down, its frequency remains the same, due to the fact that its wavelength is shorter. When waves travel from one medium to another the frequency never changes. As waves travel into the denser medium, they slow down and wavelength decreases.
Explanation:
havvee advvanncceed
Answer:
Waves. Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light. Light is refracted when it crosses the interface from air into glass in which it moves more slowly.
DUE SOON PLEASE HELP WILL MAKE FIRST ANSWER BRAINLIEST!!!
You have explored some interesting, informative, and amusing examples of models. Now it's time to get creative and make your own model. Here is the requirement checklist for your model:
-Model types can include drawings, diagrams, physical models, virtual simulations, or videos.
-Models must be created by you, not something selected from an online or outside source.
-Submit a presentation, picture, video, or screenshot of your model.
-Submit a one-paragraph summary describing the topic you chose, your model, what it represents, how you made it, and the specific science involved. It is important that you are using science terminology and are accurate.
Now that you know how to create and submit your model, you will need to choose a topic for your model. Choose one of the three topics listed below. Select each topic for an overview.
1- Conservation of Mass-Explore the law of conservation of mass. Model a physical or chemical change, and then demonstrate how mass is conserved before and after the change.
2- Atomic Theory-Explore the atomic theory of atoms. Create a model that represents the motion and intermolecular attractions of particles in solids, liquids, and gases.
3- Thermal Energy-Explore the effects of thermal energy. Model how adding or removing thermal energy affects motion in particles in a pure substance, such as water, or in a chemical reaction.
!!PLEASE CHOOSE ONE OF THE 3 ABOVE!!
Answer:
Choice 3
Explanation:
I think it would be the easiest
What did you have to look at it in order to correctly measure the amount of water in the graduated cylinder?
Answer:
Water sticks to the walls of the graduated cylinder, but only on the sides and not the middle. When students look at the surface, the water level is not straight.
Explanation:
meninges
meniscus
measles
metatarsle
can someone explain what these are used for our teacher never taught us about it
1st one so nonthing gets in your eyes
2nd one so nonthing gets on your shirt
3rd one is to wash your eyes when stuff gets in them
4th is when a fire breaks out and you use that to get rid of it
5th is for when someone is on fire you wave them with it
do you think the reflected waves would ever return to the airplane that transmitted them? explain
The reflected waves should not return back to the transmitted source if there no hindrances in the moving trajectories. If there is any hindrance or objections in front of the reflected wave there may occur some directional change and does not return to the airplane.
What is reflection?Reflection is phenomenon by which an incident wave on an object return backs in the straight direction. Reflection make an object shiny as we see from a mirror.
When light passes through a transparent or translucent material it penetrates through it and will refract or scatter from the object. This will happen when the frequency of the incident light does not matches with the frequency of the incident light.
If the a some waves are transmitted from an airplane and they are reflected in a straight direction, it will not revert back to the airplane because the reflected light will moves in a straight direction back from airplane.
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In order for convection to transfer heat, particles need to
a circulate and move within a liquid or gas
b make contact with the heat source
c transmit electromagnetic waves
As frequency decreases, wavelength…...
finish this sentence
Please help me I will give you the brain thing and extra points. part 3
6 Carbon atoms
In the 1st half, there are only 6 Carbon and it is the same on the other side, meaning it is a balenced reaction :)
When complete, the lab report should be read as a coherent whole. Make sure you connect different pieces with relevant transitions. Review for proper grammar, spelling, punctuation, formatting, and other conventions of organization and good writing.
Answer: you need to specificlly write down what you did for your lab report and do what all of thet stuff says to do
Explanation:
Answer:
So I went threw the student guide and read it carefully. Then I went threw the walk threw with the teacher and the step by step guide to get the lab done. when did multiple test an example is the height of the track and we did multiple times on that height to see it the results where same or had little difference. As I went threw it I recorded the data because I was asked to. then i filled out the questions for the lab!
Explanation:
just did it hope it helps future people
What happens in a landslide?
Water moves into an area where it does not belong.
Earth materials that are no longer held by friction move down a slope.
The upper region of a hill becomes built up by rocks.
Soil washes away into a stream.
(This is science)
=:)
☆
Is mass conserved when 10 g of sodium hydroxide undergoes a chemical change during an interaction with 57 g of copper sulfate? Use complete sentences to support your answer by explaining how this can be demonstrated.
☆
please use complete sentences for the answer/an explanation, i'm confused on this questionn v( ‘.’ )v ...
Answer:Instead of “theory” scientists use the word hypothesis to describe a possible explanation for a scientific mystery. Theories in science are hypotheses that.
Explanation:
What is the effect
A wave enters a new medium perpendicular to the boundary between the two media.
Answer:
something that is produced by an agency or cause; result; consequence: Exposure to the sun had the effect of toughening his skin. power to produce results; efficacy; force; influence: His protest had no effect.
Refraction is the change in direction of propagation of a wave when the wave passes from one medium into another, and changes its speed. Light waves are refracted when crossing the boundary from one transparent medium into another because the speed of light is different in different media.
Explanation:
hope the answer was helpful...
Which best completes the analogy?
Thyroid : Neck :: Pancreas : ___________________
A. Brain B. Stomach
C. Kidneys D. Chest
EASY How does the force of friction affect the motion of objects?
It causes the object to change direction.
It causes the object to create heat energy.
It causes the object to create kinetic energy.
It causes the object to slow down or stop.
Answer:
It causes the object to slow down or stop.
Explanation:
Friction is a unknown force pressing against another force slightly, making the moving object slow down.
A linear track begins at 0 meters and has a total distance of 100 meters to the finish line. Juliet starts at the 10-meter mark while practicing for a race.
After running 45 meters, how far is she from the beginning of the track?
10 meters
35 meters
45 meters
55 meters
Answer:
55 meters
Explanation:
Just did it in EDG 2020
Whats the effect?
A wave enters a new medium perpendicular to the boundary between the two media.
Answer: A wave
Explanation:
Because it’s the one that’s cause the new medium to go between the two media.
What effect does heat have on a chemical reaction?
Answer:
Particles can only react when they collide. If you heat a substance, the particles move faster and so collide more frequently. That will speed up the rate of reaction. ... The rate of reaction will probably have doubled for that increase in temperature - in other words, an increase of about 100%.
HOPES IT HELPS
When a force is applied to an object, its _____, the object _________________________________________________________.
Subject = Science
Need this asap ill mark brainliest On the Internet, many authors post opinion articles on scientific topics. What are the benefits and drawbacks of these opinion articles in regard to scientific discussion?
Answer:
A benefit of the opinion of a scientific author is that you can see others points of view on a subject. A drawback is that they are using an opinion and most likely not stating unbiased facts.
Explanation:
Hope this helps
Answer:
Highlights:
*Researchers in the sciences do not see access to the scientific literature as an especially important problem.
*Authors consider factors such as journal reputation and the absence of publication fees when deciding where to submit their work. In contrast, free access is not a significant factor in their submission decisions.
Implications:
*While open access has the potential to expand the authorship and readership of the scientific literature, that potential has not yet been realized.
*Librarians who encourage scientists to publish in open access journals should be aware of the authors' priorities and perspectives. Authors in the sciences tend to focus on citation impact, reputation, and accessibility to a specialized readership—not breadth of readership, copyright, or access status.
*Journal publishers that charge publication fees may want to consider alternative sources of revenue. Authors' resistance to publication fees is a major barrier to greater participation in open access initiatives.
Explanation:
What type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an atom?
The type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an atom is hydrogen spectrum.
What is hydrogen spectrum?The hydrogen spectrum is given by the scientist Bohr and it consist of series name lyman, balmer, paschen, bracklet and p- fund as the electromagnetic radiations splits into this.
The lyman series is formed when electrons jumps from any hige energy level to n = 1 and will be same for balmer , pachen ,bracklet and p-fund are obtained when electrons jumps from any higher energy level to n = 2,3,4 and 5 respectively.
Therefore, type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an atom is hydrogen spectrum.
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How does changing the Amplitude affect the energy of the wave?
Calculate the mass of a liquid with a density of 4.7 g/mL and a volume of 15 mL. help me plssssssssssssssssssssssssssssssssss
Answer:
70.5g
Explanation:
D=M/V
D=4.7 g/ml
V=15ml
plug into equation
4.7=m/15
multiply both sides by 15
m=70.5g
Answer:
70.5g/ml
Explanation:
density times volume
The diagram shows a generator powered by a water turbine. Based on the diagram, what type of energy transformation takes place in the generator?
A
Mechanical energy is transformed into electrical energy.
B
Chemical energy is transformed into kinetic energy.
C
Electrical energy is transformed into potential energy.
D
Electrical energy is transformed into chemical energy.
The transformation takes place in the generator is mechanical energy is transformed into electrical energy. Hence option A is correct.
What is energy transformation?Energy transformation is defined as the conversion of energy from one form to another. The passage of energy from one place to another is known as energy transfer. When energy transforms, it goes from one type to another.
Hydroelectricity is a type of renewable energy that produces electricity by harnessing the force of moving water. Mechanical energy is transformed into electrical energy in a generator. Most generators create alternating current as their source of electricity. A generator spins when a turbine's blades rotate due to falling water, converting the mechanical energy of the spinning turbine into electrical energy.
Thus, the transformation takes place in the generator is mechanical energy is transformed into electrical energy. Hence option A is correct.
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Which of these statements about heating up land and water is true?
Land and water are heated to the same temperature.
Land is heated through radiant energy.
Land heats up slower than water.
Land is heated by conduction.
Answer:
c
Explanation:
The correct statement regarding the heating up of land and water is " land heat up through radiant energy. Hence, option b is correct.
What is radiation?Radiation is the transfer of energy through space. The heat and light energy is reaching to the earth surface from the sun by radiation. Beside radiation, two other modes of heat transfer are conduction and convection.
Solids heats up by conduction in which the heat is transferred easily through the closed packed chain of molecules. Convection is the heat transfer mode for fluids. Where the hotter molecules rises up and make other molecules warmer.
The land heat up more fastly than water. Since the heat is transferring through the ground by conduction process and by convection in water. The heat radiated from sun warm up both land and water.
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