Answer:
p = momentum
m = mass
v = velocity
Hope this helps!
Which one is the molecule?
Oxygen (O)
Dioxygen (O2)
Oxygen is the molecule.
Answer:
Oxygen (O)
Explanation:
Brainliets to ever answers all questions and get all right
1.What are the 2 types of cells (not plant and animal)? Describe each type.
2.Are you made of prokaryotic or eukaryotic cells? Explain why you chose your answer.
3.Are bacteria prokaryotic or eukaryotic? Explain why you chose your answer.
4.What parts do all cells have in common? List at least 2.
Label the numbered parts of the cell:
pic downloaded below
8. __________________
9. _________________
12. Using the onion cell diagram above, which organelle is responsible for the greenish color?
13. Which organelle is the red arrow pointing towards?
14. Both plant and animal cells contain mitochondrion however they are not in equal amounts.
Between the cheek and onion cells, which one do you think would contains the greater amount of mitochondrion and
why?
15. Compare in your own words, at least 2 differences in plant and animal cells.
16. Why does a plant cell need a larger vacuole?
17. Animal cell do not have chloroplasts. Why not?
18. What are the 3 components of the cell theory? Put in your own words.
19. Choose one part of the Cell Theory and describe an experiment you could do that would give evidence to support your claim.
20. How can a microscopic paramecium and a large giraffe both be described by the cell theory?
Answer:
The two types of cell are:
-Eukaryotic cell
-prokaryotic cell
Description:
Eukaryotic cell: These are organisms who have a nucleus enclosed within a nuclear envelop. It does not have a cell wall unlike prokaryotes. It has mitochondria and other cell organelles.
Prokaryotic cell: Organisms with no distinct nucleus and other major cell organelles.
We humans are made up of Eukaryotic cell type as we have membrane bounded nucleus and all the essential major organelles to perform vital body function. Humans have complex organization of cells. Cells have cytoskeleton and organelles surrounded by cytoplasm.
Bacteria are prokaryotic, as they have cell wall made of peptidoglycan, they lack nucleus and membrane bounded organelles. Hence considered to be unicellular life forms.
Similarities between prokaryotes and Eukaryotes:
-Both have cell membrane
-Both have genetic material
- Both have ribosome
-Both have cytoplasm
-Both have vacuole
5. The cell wall is like House because it protects the family members inside as cell wall protects the substance inside the cell.
6. The cell membrane is like airplane because it allows passenger to come in and go out the way cell membrane allows substances to enter and leave.
7.The vacuoles is like a basketball because both acts as storage, basket ball stores air and vacuole store other substance.
8.nucleus
9.Vacuole
10.Cytoplasm
11. Cell wall
12.Chloroplast
13. Nucleus
14.Cheek will have greater number of Mitochondria as great function and more energy required which will be released in form of ATP.
15. Differences:
1.Animal cell do not have cell wall whereas plant cells have cell wall.
2. Animal cells have several small vacuoles whereas plant cells have one large nucleus.
3.Plant cells have chloroplast but Animal cells don not.
16.Plants have single large vacuole as it performs two main function
i)To keep the plant upright
ii)To store water
Large vacuole protect cell from potential harm.
17.In plants chloroplast main function is to synthesis food whereas in humans there is no such need as they get sugar from the food they eat.
18. components of cell theory:
1. All living things are composed of cell.
2.Cells are basic units of structure and function for two living beings.
3.All cells come from pre existing cells.
19. All living things are composed of cell:
Experiment:
Cut sections can be taken of Human hair, onion and bacterial colony. Slides can be prepared and viewed under microscope to confirm the presence of cell.
20. They can be distinguished on basis of microscopic result A Giraffe is a multicellular organism hence multiple cells will me visible under microscope where as a Paramecium is single cell organism.
Explanation:
“ As temperature increases, energy increases, and the speed of the molecules _______________ .”
Answer:
If the temperature is increased, the average speed and kinetic energy of the gas molecules increase.
Explanation:
All of the following are forms of energy EXCEPT: A) heat B) friction C) light D) electrical
Answer:
Friction
Explanation:
Friction make heat energy its not a energy it self just a force
Answer:
Friction
Explanation:
Friction is only the resistance that one surface or object encounters when moving over another
A student passes a magnet over 10 grams of a powder. Four grams of the powder stick to the magnet, while 6 grams do not .which of these identifies the substance?
Which statement is a hypothesis?
A- crickets are cooler than grasshoppers
B- if the temperature increases, then crickets will chirp more.
C- I hear crickets in the summer, so crickets chirp more when it’s war outside
D- dose temperature affect how much crickets chirp?
Answer: C) Does the temperature affect how much crickets chirp
Explanation:
Explain how you can determine which gas is most likely to work well in a thermoacoustic generator based on position on the periodic table.
Answer:Osmium and hassium are most likely to have similar properties because they are in the same group. Argon and neon are in the same column of the periodic table.
Answer:
Osmium and hassium are most likely to have similar properties because they are in the same group. ... Argon and neon are in the same column of the periodic table
Which is a limitation of comparative investigations?
They give results that are usually not repeatable by other scientists.
They might show variable relationships that are not actually cause and effect.
They can usually only be conducted in labs instead of in natural environments.
They are usually inexpensive, but they do not provide new information.
Answer:
hi............
Explanation:
help me fastttttttttttt
Answer:
True is my answer
#Carry on learning#:)
Answer:
True
Explanation:
Bc u said it already the answer
“name each season from the diagram above.” PLEASE HELP I WASNT AT SCHOOL.
Answer:
to be honest I don't know
Explanation:
Answer:
A- Summer E- Winter
B- Spring F- Fall
C- Winter G- Summer
D- Autumn/Fall H- Spring
Explanation:
*WARNING* I don't know for a fact but i think this is the answer
What is the name of this unstable isotope from number 9?
Answer:
Xenon
Explanation:
Xenon is the unstable isotope element from number 9
Part A
Describe the type of change in matter that occurred in thisinvestigation and provide evidence to support your response.
Part B
Describe a chemical property of baking soda.
Part C
Explain how the results of the investigation support the Law of Conservation of Matter.
Part D
Provide a brief explanation whythe investigation measurements differed.
Answer:
part b:
Sodium bicarbonate is a white, crystalline powder that sometimes forms lumps. It is odorless and has a bitter, salty taste. At room temperature, it is a solid. Solubility, or the ability of a substance to dissolve in water, is also a physical property. Sodium bicarbonate is soluble in water and can be separated from water through evaporation.
Explanation:
In the reaction of baking soda with acetic acid carbon dioxide gas is evolved that's why the balloon inflates. The mass in the product side and reactant side ar equal and the the total mass is conserved.
What is mass conservation?According law of conservation of mass, mass can neither be created nor be destroyed. Therefore, the total mass of a system will be conserved. In a chemical reaction, the total mass of reactants is equal to the total mass of products and thus no mass loss occur there.
In the reaction of vinegar (acetic acid) and sodium bicarbonate or baking soda, the mass on both side is equal and we get the product mass equal to the total mass of reactants if the experiment is carefully done.
Sodium carbonate is a colourless weak base, which can easily react with an acid and gets protonated. When sodium bicarbonate that is NaHCO₃, with vinegar CH₃COOH, it will produce carbon dioxide and water.
This carbon dioxide gas evolves to the balloon which is stretched on the top and the balloon will inflates.The measurements will differ at each moment because we are measuring it in different events of the reaction where the gas is evolving out.
To find more about baking soda, refer the link below:
https://brainly.com/question/17560232
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Why do you see lightning before you hear the thunder?
The rain in the air slows the sound waves down.
Light travels faster than sound through the air.
The thunder has to reflect off the ground first.
The lightning is closer to the ground than the thunder.
B,speedof light>speed of sound
The forces exerted on an object are shown.
help asap!!!!! (i will mark brainliest)
A box has an arrow pointing down labeled F and an arrow pointing up labeled 5 N.
Which of the following happens when F is less than 5 N?
The object moves up.
The object moves down.
Balanced forces keep the object stationary.
Balanced forces keep the object's speed constant.
Answer:
The object moves up.
Explanation:
I think that's the answer because since F was up that would cause 5 N . To go up.
Tell me if I'm wrong, plz :D
Answer:
The object moves up
What is a characteristic of hardness in science?
Answer:
The ability to resist being scratched—or hardness—is one of the most useful properties for identifying minerals. Hardness is determined by the ability of one mineral to scratch another.
The ability to resist being scratched or hardness is one of the most useful properties for identifying minerals.
What is the best description of how heat is transferred from deep in the earth to the surface?
a. Conduction brings hot magma up through the mantle toward the crust, where it cools and sinks.
b. Convection brings hot magma up through the mantle toward the crust, where it cools and sinks.
c. Convection brings hot magma up from the core to the crust, where it cools and sinks.
d. Conduction brings hot magma up from the core to the crust, where it cools and sinks.
Answer:
pretty sure it's C,
Explanation:
Mantle convection is the very slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface. ... This hot added material cools down by conduction and convection of heat.
Which method of galaxy formation is expected to dominate far in the future?(1 point)
A) primordial collapse
B) merging
C) slow evolution
D) spreading
Answer:
its c) slow evolution
Explanation:
I took to qc
pls help me also pls have the correct answer
Answer:
Explanation:
help quick............
Atomic number: 42
Chemical symbol: Molybdenum (Mo)
Number of protons: 96
Atomic mass: 96
Number of electrons: 42
Number of valence electrons: 5
Number of electrons in the n=3 shell: 42
Number of neutrons: 54
True or False. The elements that make up the reactants must be present in the products.
Answer:
In a chemical reaction, the atoms and molecules that interact with each other are called reactants. In a chemical reaction, the atoms and molecules produced by the reaction are called products. In a chemical reaction, only the atoms present in the reactants can end up in the products.
Explanation:
Which surface is most likely to create an echo?
a room with hard, flat walls
a room with hard, bumpy walls
a room covered in soft, wavy curtains
a room padded with soft, flat cushions
A room with hard, flat walls surface is most likely to create an echo. Hence option A is correct.
What is echo?Echo is defined as a recurrence of sound caused by sound waves being reflected off of a wall, mountain, or other obstruction. Bats, dolphins, and fishermen all use echoes to find objects or obstructions. To find an obstruction, they are also utilized in SONAR (Sound navigation and ranging) and RADAR (Radio detection and ranging).
Buildings made of glass, metal, and concrete, the brick and metal interior of a warehouse, marble floors and buildings, or, if the room is designed in such a way that the acoustics produce an echo, plastered and painted interior walls, are examples of man-made materials that are smooth enough to produce an echo.
Thus, a room with hard, flat walls surface is most likely to create an echo. Hence option A is correct.
To learn more about echo, refer to the link below:
https://brainly.com/question/9527413
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Throughout the investigation the ice begins to melt. This is because the thermal energy of the water ___while the thermal energy of the ice ____, causing it to melt.
First Blank: decreases
Second Blank: Increases
when enough stress builds up in brittle rock, the rock breaks, causing a ___ to form
How do faults form? When enough stress builds up in rock then the rock breaks creating a fault. A normal fault occurs when rock is being pulled apart by tension; in this type of fault the hanging wall moves downward and the foot wall moves upward due to the tension in Earth's crust.
how can I determine which gas is most likely to work well in a thermoacoustic generator based on position on the periodic table.
Answer:
Well, you can determine by the placement of the element on the table. I hope this helps you! :)
HELP!!!!!
Physical Models Activity
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.
Conservation of Mass
Atomic Theory
Thermal Energy
Answer:
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.
Explanation:
Answer: okay so!! I picked Atomic Energy, and i found some models- I'm not entirely sure what type of model this is supposed to be, so I found what i think it is. I hope I'm not late!!
Explanation:
Alright here's the description:Atomic optimism, from the History of Atomic Energy Collection.
so, i thought you could do a voice over (2:00 to 3:00 minutes long) of what you think the meaning of this is, or write a short summary of it.
(Of course you would have to crop this because,it wouldn't let me send it in cropped. I hope this helped!
An element can be separated into simpler substances by
a. physical means
b. chemical means
c. both physical and chemical means
d. neither physical nor chemical means
Which part of the ear converts vibrations into nerve impulses?
cochlea
auditory nerve
outer ear
eardrum
Answer:
cochlea
Explanation:
The cochlea is filled with a fluid that moves in response to the vibrations from the oval window. As the fluid moves, 25,000 nerve endings are set into motion. These nerve endings transform the vibrations into electrical impulses that then travel along the eighth cranial nerve (auditory nerve) to the brain.
:)
How does the initial mass of the candle compare with the final mass? Does this violate the Law of Conservation of Mass? Explain your reasoning.
describe the relationship between the mass of the ice and the transfer of thermal energy in the investigation. Use evidence and scientific reasoning to support your answer. (Use the following words: Molecules, Kinetic Energy, and Heat.
PLEASE HELP
Answer:
Explanation: 1234456
PLS HELP
Look at the graduated cylinder. It contains the liquids listed in the data table. Match each liquid to the correct layer in the graduated cylinder. PLS HELP
https://d3rqz33hmpm7kb.cloudfront.net/2020-11-13/5f3ac626a22583fa93635140/5fae8af5e152318644188f65_rich-text-file-2020-11-13T13-32-35-83Z.imagepng
Answer:
canola oil goes on top below that is salt water below that is ether and below that is corn syrup
Explanation:
