Answer:
I would say A) a gas
Explanation:
Similar to gas plasma has no defiant shape or volume. Both plasma and gas particals are far apart. But gas is electrically neutral and plasma charged. Plasma is distinct from gas because it possess unique properties. Hope that helps
Sample Temperature (ºC) Volume (mL)
;1. 15 . 30
;2. 8 .30
; 3 .22 .30
4 4 30
A student measures the temperature of four samples of water. Which sample has water particles that have the greatest average kinetic energy?
A. 3
B. 1
C. 4
D. 2
Answer:
LEAN
Explanation:
I LOVE LEAN
Give four important features of Italian opera.
What are the forces and direction of the forces acting on the egg as it falls?
Answer:
GRAVITATIONAL FORCE AIR RESISTENCE
Explanation:
The transfer of heat by direct contact is called ?
what i do not no.???
Explanation:
Conduction is the transfer of energy from one molecule to another by direct contact.
What causes a sound wave to travel?
A
An object vibrates, and those vibrations carry air in all directions as transverse waves.
B
An object vibrates, and those vibrations carry air in all directions as longitudinal waves.
Answered Incorrectly
C
An object vibrates, and those vibrations travel through air in one direction as a transverse wave.
D
An object vibrates, and those vibrations travel through air in one direction as longitudinal waves.
I choose B. but B. was incorrect so what is the answer?
Answer:
a
Explanation:
transverse waves are emitted by a vibrating object in all directions, which is why if you stand around a speaker or other thing that makes noise, say someone tapping on their desk, with others, you can all hear it.
Constructing models can help provide evidence about why the moon changes appearances. Describe what someone on Earth would observe if viewing the moon in the night sky, based on the positions of the sun, Earth, and moon in the model. Then, describe what he or she can expect to see over the next few evenings.
Here is a picture of the model:
Explanation:
The Moon has no glow of its own, but shines with the reflected light of the Sun. During its crescent phase in the twilight or dawn, you can also sometimes see the dark portion of the Moon glowing faintly in the sunlight that reflects off Earth, an effect called earthshine.
Answer:
Well it all depends on where the moon is at if it is at the top more of the moon is going to show but lets say its in the mid the it would be half at that because it is hitting the moon in the mid but at the same time you wont be able to see the moon alll the way because of the suns reflection on to the moon which makes it vblack somethimes when you look at it.
Please Help Me. Counting atoms
Answer:
H; 6
C; 3
O; 9
Explanation:
can someone please help me :)
Answer:
black cra00ie( couldn't put the actual word because it has an error)
Explanation: A tertiary consumer is at the top most level of a food chain :)
Which layers are the same? How do you know?
Which is the oldest of the rock layers E and F? Why?
Answer:
C and F are the same because they are buried in the same spot and have the same fossilized creature.
I'm very sorry but for the second question I'm confused:(
When looking at the shape of the continental shelves that surround South America and Africa, it can be observed that the continental shelves fit together. This observation supports the idea that –
A The continental shelves of these two continents are made of the same type of rock material
B The tectonic plates beneath these continents are roughly the same age
C These continents were joined in the past and have moved apart since that time
Answer: C. These continents were joined in the past and have moved apart since that time.
Explanation:
Qwik qwesten xD
Solar energy travels in a straight line from the sun and hits different parts of the curved Earth at different ___________ - more direct at the __________________ and less direct at the ________________.
Answer:
Solar energy travels in a straight line from the sun and hits different parts of the curved Earth at different angles - more direct at the sun and less direct at the earth
Explanation:
When you lift a book from the ground to your desk, what kind of work do you do, negative or positive? By lifting the book, what do you change? Does the book gain or lose energy? What kind of energy?
Second question: A ball with a mass of 5.0g is moving at a speed of 2.0 m/s. Would doubling the mass or doubling the speed have a greater effect on the kinetic energy of the ball? Explain.
Answer:
When you lift a book from the ground to your desk, you do positive work. By lifting the book, you are increasing the object's gravitational potential energy. The book gains energy. It is gravitational potential energy.
Explanation:
Positive work is said when the force exerted on the object is in the same direction as that of the direction of its displacement.
Negative work is said to be done when the force exerted on the object is in the opposite direction as that of the direction of its displacement.
In this case, the force exerted on the book is in the upward direction and is in the same direction as that of its displacement. Hence, we are doing a positive work. Gravity is doing a negative work.
When we lift the book, we are changing its location from ground to the desk and in this process, the book is gaining energy. The energy gained by the object is gravitational potential energy.
Gravitational potential energy is the energy which is possessed by the virtue of the object's position of location.
Answer:
1)When I lift the book, I do positive work. By lifting the book I change its location. The book is gain energy and it is potential energy.
2)Doubling the mass or doubling the speed will have a greater effect on the kinetic energy of the ball. Because doubling the mass would have a greater effect on the kinetic energy of the ball because you are dividing the mass by velocity and if you have a greater mass that means a bigger answer.
Explanation: I am taking the test
How are air temperature and air pressure related?
Low air temperature causes the air particles to be packed together, creating high air pressure.
Low air temperature causes the air particles to spread out, creating low air pressure.
High air temperature causes the air particles to rise, creating low air pressure.
High air temperature causes the air particles to stay close to the ground, creating high air pressure.
Answer:
You already answered yourself
Which option is an example of heat transfer by conduction?
A. person getting warm from an electric blanket
B. pavement heating up in the sun
C. air conditioner cooling the room
D. air getting warm from a radiator
Person getting warm from an electric blanket is an example of heat transfer by conduction.
What is conduction?
Conduction is defined as a process as a means of which heat is transferred from the hotter end of the body to it's cooler end.Heat flows spontaneously from a body which is hot to a body which is cold.
In the process of conduction,heat flow is within the body and through itself.In solids the conduction of heat is due to the vibrations and collisions of molecules while in liquids and gases it is due to the random motion of the molecules .
When conduction takes place, heat is usually transferred from one molecule to another as they are in direct contact with each other.There are 2 types of conduction:1) steady state conduction 2) transient conduction.According to the type of energy conduction is of three types:
1) heat conduction
2) electrical conduction
3)sound conduction
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Choose all the statements which correctly describe the function of the outer covering in plants:
It protects the plant from harsh weather conditions.
It can reduce water loss in plants.
It produces the pollen used in reproduction.
I and II
I and III
II and III
I, II, and III
the first two are correct
Which of the following provides evidence that the continents on tectonic plates have moved away from each other in the past?
A The composition and thickness of rock layers varies at different depths
B The frequency of volcanic activity is higher at edges of tectonic plates
C Ocean currents can be disrupted near boundaries between tectonic plates
D Fossils of the same plants and animals are found on widely separated continents
Answer:
D
Explanation: I have watched a video in the past, and back then, there was supercontinent "Pangea" the evidence was that is all of the continents were mashed together, animals could roam the entire Earth. If the continents were the same as they were now, fossils would be found on one continent.
26 points. Pls, hurry. When you lift a book from the ground to your desk, what kind of work do you do, negative or positive? By lifting the book, what do you change? Does the book gain or lose energy? What kind of energy?
Second question: A ball with a mass of 5.0g is moving at a speed of 2.0 m/s. Would doubling the mass or doubling the speed have a greater effect on the kinetic energy of the ball? Explain.
Answer:
Negative kind of work can be done.
A ball with a mass of 5.0g is moving at a speed of 2.0 m/s. Would doubling the mass or doubling the speed have a greater effect on the kinetic energy of the ball? Explain.
Answer:
Yes.
Explanation:
Because mass and velocity are directly proportional to kinetic energy.
Use complete sentences: Explain what equilibrium means as it relates to net force.
Answer:
A force is a vector quantity which means that it has both a magnitude (size) and a direction associated with it.
Explanation:
If an object is at equilibrium, then the forces are balanced. Balanced is the key word that is used to describe equilibrium situations.
Which of these are functions of capillaries? (Select all that apply.)
absorb oxygen and nutrients
carry blood away from the heart
deliver blood to all cells
surround alveoli
Answer:
Absorb oxygen and nutrients.
Surround Alveoli.
Explanation:
Absorbing Nutrients takes place in the intestines where the walls are richly supplied with blood vessels to maximise absorption of nutrients.
Absorbing Oxygen takes place in the lungs , specifically the alveoli. The Alveoli is covered with cappilaries whose function is to exchange gases.
Explain Einstein's general relativity
Answer:
Einstein's 1915 general theory of relativity holds that what we perceive as the force of gravity arises from the curvature of space and time. The scientist proposed that objects such as the sun and the Earth change this geometry.
Explanation:
Answer:
Explanation:
General relativity is a theory of space and time. The theory was published by Albert Einstein in 1915. The central idea of general relativity is that space and time are two aspects of spacetime. Spacetime is curved when there is matter, energy, and momentum resulting in what we perceive as gravity.
Which of the following is the term for the heaviness on somethings surface that exerts a force over an area?
A eruption
B sediment
C deposition
D pressure
Answer:
d. pressure
Explanation:
=force/area
Use the table of temperatures from several areas to complete the statement.
Area Temperature (ºC)
X 22
Y 18
Z 18
Air will move from _____.
(1 point)
area Y to area Z
area Y to area Z
area Z to area Y
area Z to area Y
area X to area Z
area X to area Z
area Y to area X
The air will move from area Y to area X.
What is pressure gradient?In atmospheric science, the pressure gradient ( generally of air but more generally of any fluid) is a physical volume that describes in which direction and at what rate the pressure increases the most fleetly around a particular position. SI Unit of pressure gradient is Pascal per meter( Pa/ m). Mathematically, it's the gradient of pressure as a function of position.
As temperature of air rises, the volume of air increases, that is, density of air decreases. As a result, pressure at high temperature area also decreases. Air generally moves from an area at high pressure to a area of low pressure. So following pressure gradient , air moves from low temperature area to high temperature area.
According to given data, temperate of area X is greater than both area Y and Area Z.
Hence, air will move from area Y to area X.
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An iron needle has been given a positive charge.
Which type(s) of fields will exert a force on the needle?
A) only a magnetic field
B) only a magnetic and an electrical field
C) only an electrical and a gravitational field
D) a magnetic, an electrical and a gravitational field
An iron needle has been given a positive charge. A magnetic, an electrical and a gravitational field will exert a force on the needle. Hence, option (D) is correct.
What is electric field?The electric field is mathematically defined as a vector field associated with each point in space, the force per unit charge exerted on a positive test charge at rest at that point.
The electric charge or time-varying magnetic fields generate the electric field. At the atomic level, the electric field is responsible for the attractive forces that hold the atomic nucleus and electrons together.
On iron needle initially, electrical and a gravitational field exert a force. When it has been given a positive charge, magnetic field adds. So, a magnetic, an electrical and a gravitational field will exert a force on the needle.
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PLEASE PLEASE HELP I WILL MARKE BRAINLIEST 20 PTS!
Hypothesis:
In this section, please include the if/then statement you developed during your lab activity. This statement reflects your predicted outcome for the experiment.
If I project light rays through glass, then they will refract, or bend, the most.
Procedure:
Please be sure to identify the test variable (independent variable) and the outcome variable (dependent variable) for this investigation. Remember, the test variable is what is changing in this investigation. The outcome variable is what you are measuring in this investigation.
Test variable (independent variable): Outcome variable (dependent variable):
Select Intro to begin.
Once the simulation loads, you will drag the protractor onto the screen so that the 0 lines up with the dotted line in the center of the screen.
You will test all three materials in the bottom, blue half of the screen: air, water, and glass.
Record your observations of how the light rays interact as they pass from air, on the top of the screen, through the three materials on the bottom of the screen
Data:
Record the data from each trial in the data chart below. Be sure to fill in the chart completely.
Material
InteractionsList any observations you made as the light rays passed from the air on the top of the screen to the selected material on the bottom of the screen.
evidence using the protractor, measure the angle as the light passes from the top material to the bottom material on the screen. Also, note the index of refraction for each as indicated on the screen.
Trial One
Air on top
Angle:
Index of refraction:
Air on bottom
Trial
Air on top
Angle:
Two
Index of refraction:
Water on bottom
Trial Three
Air on top
Angle:
Index of refraction:
Glass on bottom
Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please write in complete sentences.
Did your data support your hypothesis? Use evidence to explain.
Which material refracted the light rays the most: air, water, or glass?
Which material refracted the light rays the least: air, water, or glass?
How does density affect refraction?
Diamonds are a very dense material. Predict what would happen to the light ray if you projected it from air through a diamond.
Explain where you observe reflection, refraction, and absorption of light in your everyday activities
Answer:
Name and Title:Include your name, instructor's name, date, and name of lab.
Baylee Oakes, Mrs. Duchien, 2/13/20, Properties of Light Lab
Hypothesis:
In this section, please include the if/then statement you developed during your lab activity. This statement reflects your predicted outcome for the experiment.If I project light rays through (choose one: air, water, glass), then they will refract, or bend, the most.
Procedure:
Please be sure to identify the test variable (independent variable) and the outcome variable (dependent variable) for this investigation. Remember, the test variable is what is changing in this investigation.
The outcome variable is what you are measuring in this investigation.
Test variable (independent variable): the materials (air, water, and glass)
Outcome variable (dependent variable): how light changes direction when put in varied materials
Select Intro to begin
.Once the simulation loads, you will drag the protractor onto the screen so that the 0 linesup with the dotted line in the center of the screen.You will test all three materials in the bottom, blue half of the screen: air, water, and glass.
Record your observations of how the light rays interact as they pass from air, on the top of the screen, through the three materials on the bottom of the screen
Data:
Record the data from each trial in the data chart below. Be sure to fill in the chart completely.MaterialInteractionsList any observations you made as the light rays passed from the air on the top of the screen to the selected material on the bottom of the screen.
EvidenceUsing the protractor, measure the angle as the light passes from the top material to the bottom material on the screen. Also, note the index of refraction for each as indicated on the screen.
(See the attach for the answer of this section0)
Conclusion:Your conclusion will include a summary of the lab results and an interpretation of the results. Please write in complete sentences.
Did your data support your hypothesis? Use evidence to explain.
Yes, my data supported my hypothesis. In my hypothesis I stated that if I project light through glass it will refract the most and after investigation, I discovered that the glass reflected the light the most bending it at a
Which material refracted the light rays the most: air, water, or glass?
The glass refracted the light the most, bending it to a
Which material refracted the light rays the least: air, water, or glass?
The air refracted the light the least because the light did not bend at all.
How does density affect refraction?
Density affects refraction because light waves, unlike sound waves, don’t need to interact with other particles to travel and they travel faster in the air and since light travels in a straight line, the denser the material gets the less it will be able travel in a straight line hence, it will refract more the denser the material gets.
Diamonds are a very dense material. Predict what would happen to the light ray if you projected it from air through a diamond.
Since diamonds are very dense material, I predict that the light will refract because light travels in a straight line and does not need to interact with other materials to travel, so the light will refract in the dense material.
Explain where you observe reflection, refraction, and absorption of light in your everyday activities
In my everyday life I observe reflection when I look in the mirror and brush my teeth, I observe refraction when I drink a glass of water with a straw, and I observe absorption when I wear dark colors outside and I get really hot because the dark colors are absorbing the sunlight.
Explanation:
Answer:
Name and Title: Properties of light lab,
Objective(s):
To explain how different materials can make light bend.
Hypothesis:
In this section, please include the if/then statement you developed during your lab activity. This statement reflects your predicted outcome for the experiment.
If I project light rays through water, then they will refract, or bend, the most.
Procedure:
Please be sure to identify the test variable (independent variable) and the outcome variable (dependent variable) for this investigation. Remember, the test variable is what is changing in this investigation. The outcome variable is what you are measuring in this investigation.
Test variable (independent variable): the materials used air, water and glass
Outcome variable (dependent variable): how the light changes directions with different materials
1. Select Intro to begin.
2. Once the simulation loads, you will drag the protractor onto the screen so that the 0 lines up with the dotted line in the center of the screen.
3. You will test all three materials in the bottom, blue half of the screen: air, water, and glass.
4. Record your observations of how the light rays interact as they pass from air, on the top of the screen, through the three materials on the bottom of the screen
Data:
Record the data from each trial in the data chart below. Be sure to fill in the chart completely.
Material Interactions
List any observations you made as the light rays passed from the air on the top of the screen to the selected material on the bottom of the screen. Evidence
Using the protractor, measure the angle as the light passes from the top material to the bottom material on the screen. Also, note the index of refraction for each as indicated on the screen.
Trial One Air on top The light does not reflect, nor does it refract. Angle: 180
Index of refraction: 1.00
Air on bottom The light does not reflect, nor does it refract.
Trial Two Air on top The light does not reflect, nor does it refract. Angle: 166
Index of refraction: 1.33
Water on bottom The light reflects and it refracts.
Trial Three Air on top The light does not reflect, nor does it refract. Angle: 152
Index of refraction: 1.50
Glass on bottom The light reflects and it refracts.
Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please write in complete sentences.
1. Did your data support your hypothesis? Use evidence to explain.
No, in my hypothesis I stated that water would refract or bend the most, but I found that it was water it was glass that would refract or reflect the most.
2. Which material refracted the light rays the most: air, water, or glass
I have found that glass refracted the most.
3. Which material refracted the light rays the least: air, water, or glass?
I found that air refracted the least because there was no bend.
4. How does density affect refraction?
Density affects refractions because of light waves unlike sound waves. sound waves don’t need to interact with the other particles to travel faster in the air and since light always travels in a straight line the denser the material gets and the less it will travel in a straight line. Hence it would refract more the denser the material gets.
5. Diamonds are a very dense material. Predict what would happen to the light ray if you projected it from air through a diamond.
A diamond is a very dense material. So, I can predict that light would refract in the material because light travels in a straight line and does not need to interact with any objects or materials to travel so the light would refract in the dense material.
6. Explain where you observe reflection, refraction, and absorption of light in your everyday activities
In my everyday life I notice a reflection in the mirror or in a window. I also can observe a refraction when I drink a glass a water using a straw. I can also observe that while I’m cleaning the dishes how the water absorbed into the sponge.
Explanation:
dont forget not to copy use your own word this is only hee to help you!
i hope this helps<3
Answer the question in the picture make your response simple but to where it gives a full answer! I need a response ASAP!
Answer: A river delta is a landform created by deposition of sediment that is carried by a river as the flow leaves its mouth and enters slower-moving or stagnant water. This occurs when a river enters an ocean, sea, estuary, lake, reservoir, or (more rarely) another river that cannot carry away the supplied sediment. The size and shape of a delta is controlled by the balance between watershed processes that supply sediment.
what is one way that water can impact the weather and how that can affect humans.
The water cycle contributes to the movement of hot and cold air.
The water cycle is how clouds originate, as most of the water that makes up rain and snow evaporates from the ocean.
Precipitation in the sky has an impact on the weather on several levels.
The wind is influenced by the water cycle.
While the ocean and land are the primary generators of wind, water in the atmosphere retains heat and can be used to create and redirect it.
I hope this helps! :)
Couldn't copy and paste, so just screenshotted, pls help. will give brainly.
Answer: I could be wrong but according to Newton’s third law of motion, for every action, there is an equal and opposite action, so for every answer, just find an arrow that’s the same size as the blue one and make the arrow point in the opposite direction that the blue one is pointing to