pls help me with this pls don't just come to my question with out answering the questions
Answers
Related Questions
Which statement below describes a physical property of a substance?
A. Helium gas floats because is less air dense than air
B. Sulfuric acid is a toxic liquid
C. Iron rusts when exposed to water and air
D. Sodium metal explodes when exposed to water
Answers
Answer:
A
Explanation:
Because density is a physical property and the rest are all chemical properties
Answer:
A
Explanation:
A dog whistle has a high frequency. What can you infer about the dog whistle?
It would be very loud.
It would have a high pitch.
It would have a high amplitude.
It would have a long wavelength.
Answers
Answer: It would have a high pitch.
Explanation: since the whistle has a high frequency, I can infer that it will have a high pitch.
Answer:
it would have a high pitch
Explanation:
like if u take a hearing test the sounds are usually high pitch
What answer best describes Carbon Dioxide (CO2)?
compound
molecule
element
Answers
Answer:
Molecule
Explanation:
Hope this helps!
It’s not elements bc elements is only one
How do planets with larger masses apply greater gravitational forces on objects compared to planets with less mass?
⇒ Please answer in your own words
Answers
Answer:
it's bigger
Explanation:
it's bigger than the planet with less mass
Answer:
bigger.
because the bigger the plant is the less mass it has .
hope this helped you
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
Answers
Answer:
canola oil goes on top below that is salt water below that is ether and below that is corn syrup
Explanation:
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
Answers
Answer:
its c) slow evolution
Explanation:
I took to qc
What is the basic building block of all pure substances that make up matter in the world? A. atoms B. cells C. compounds
Answers
Answer:
a) Atoms
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
Answers
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
#SPJ2
“ As temperature increases, energy increases, and the speed of the molecules _______________ .”
Answers
Answer:
If the temperature is increased, the average speed and kinetic energy of the gas molecules increase.
Explanation:
Hope it helped
how can I determine which gas is most likely to work well in a thermoacoustic generator based on position on the periodic table.
Answers
Answer:
Well, you can determine by the placement of the element on the table. I hope this helps you! :)
Pls, Help! 35 Points!
How can geothermal energy be used?
A fuel vehicles
B capture solar power
C power hybrid vehicles
D generate electricity
Answers
Answer:
generating electricity hope this helps have a nice day ;)
Explanation:
Answer:
d
Explanation:
Brainliets and a lot of points 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?
Answers
2. Humans are eukaryotes. Like all other eukaryotes, human cells have a membrane-bound organelles and a definite nucleus
3. Bacteria are microorganisms made up of a single prokaryotic cell. There are two general categories of cells: prokaryotic and eukaryotic. Sometimes, organisms are referred to as prokaryotes or eukaryotes, based on the type of cell(s) that compose them.
4. Three similarities between prokaryotic and eukaryotic cells are that both have vesicles, vacuoles, and the ability to carry out the eight functions of life.
Which part of the ear converts vibrations into nerve impulses?
cochlea
auditory nerve
outer ear
eardrum
Answers
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.
:)
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.
Which interaction occurs when light goes into an object as heat energy?
Answers
Answer:
Absorption. Absorption occurs when photons from incident light hit atoms and molecules and cause them to vibrate. The more an object's molecules move and vibrate, the hotter it becomes. This heat is then emitted from the object as thermal energy.
Explanation:
Jim thinks that he can throw a baseball six meters per second. What does the six meters refer to? (2 points)
a
The speed the baseball travels in six seconds.
b
The distance the baseball travels in one second.
c
The distance the baseball travels in six seconds.
d
The time it takes the baseball to travel one meter.
Answers
All of the following are forms of energy EXCEPT: A) heat B) friction C) light D) electrical
Answers
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
In many environments, the temperature of the ground and the air right above the ground are both very similar in the middle of the night. Engineers have proposed developing a portable pop-up hammock that would allow people to sleep suspended in the air above the ground in emergencies. It will take time and money to develop a really lightweight, easy to collapse, low cost design. Before they invest the resources to do this, explain whether what you learned about energy transfer makes this an idea worth pursuing. Would suspending a person in a hammock, wrapped in one of the blankets you chose above, decrease the amount of temperature change compared to sleeping directly on the ground with one of these blankets? Explain.
Answers
Answer:
yes i think so
Explanation:
Hammock is a good idea to reduce the effect of cold in night. It is more better than sleeping directly on the ground with one of these blankets, because, the heat will transfer from us to the cool ground which make us more cool.
What is heat transfer?Heat is able to transfer from the hotter region to colder region based on the temperature gradient. The temperature gradient occurs from the difference in heat radiated in each regions.
The convection current in air occurs due to this temperature gradient. During winter seasons, the colder grounds can absorbs the heat from our body and make us cool. Thus, contact with the ground in colder nights make us more cool.
The same advantage of air circulation around your body on warm nights is provided by a nylon hammock. Additionally, a cozy under blanket (like this one from Cedar Ridge or this one from Little Shop of Hammocks) will keep your backside warm when the weather drops.
To find more on hammocks, refer here:
https://brainly.com/question/29007897
#SPJ2
HELPPPPPPPPP
HI PLSPLS
Answers
How large is a typical animal or plant cell? A. 1-100 millimeters B. 1 meter C. 10-100 nanometers D. 10-100 micrometers WILL MARK BRAINLEST Science
Answers
Answer:
10-100 micrometers
Explanation:
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
Answers
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!
Can you make some notes related to these texts?
Answers
Answer
Explanation:
ddssfdxfghfchgj
• Acceleration: change in velocity compared with the time it takes to change
- Average Acceleration: (Final Velocity - Starting Velocity) / Time
• Velocity: expressed in meters per seconds (m/s)
• Time: expressed in seconds (s)
• Acceleration is measured in meters per second per second
- meters per second squared (m/s²)
Picture #2:
• Acceleration is a vector
- magnitude
- direction
• Acceleration: increases and decreases in speed
• Positive Acceleration: increase in speed
- sliding down from a hill
- small velocity -> large velocity
• Negative Acceleration: decrease in speed
- car slowing then
- high velocity -> low velocity
- initial velocity is larger than final velocity
- (v2 - v1) will be negative
- acceleration “a = (v2 - v1) / t” will be negative
• Acceleration and velocity (rate of motion) in the same direction = speed will increase.
• Acceleration and velocity in opposing directions = speed will decrease
Picture #3:
• Acceleration: rate at which velocity changes
• Velocity is a vector: has magnitude & direction
- magnitude or direction changes = the velocity changes
• Object accelerates speed = direction of motion or both magnitude and direction changes
• Acceleration depends on amount of time for the change to take place and how much velocity changes
- Small change in velocity can be a large change in acceleration if the change occurred quickly.
- Large change in velocity can be a small change in acceleration if the change occurred slowly.
- Increasing speed by 5 m/s in 5 seconds is smaller acceleration to increase speed by 5 m/s in 1 second.
Picture #4:
• An object changing the direction of motion experiences acceleration even when not speeding up or slowing down
• An object is always turning.
• Centripetal Acceleration: acceleration in circular mode.
Explain how you can determine which gas is most likely to work well in a thermoacoustic generator based on position on the periodic table.
Answers
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
heeeeeeeeeeeeeeeeeellllllllllllllllllllllllppppp
Answers
Answer:
Atomic number = 42
Chemical symbol = Mo
Number of protons = 42
Atomic mass = 96
Number of electrons = 42
Number of valence electrons = 1
number of electrons in n=3 shell = 8
Number of neutrons = 54
hope this helps :)
Buffalo, New York is a city located near a large lake called Lake Erie. Buffalo receives an average of nearly 94 inches of snowfall a year. Using your knowledge of temperature and what you have read, explain why Buffalo receives so much snow.
Answers
Answer: it is further away from the equator
Explanation:
The simple answer to why Buffalo receives so much snow, and why it is is often confined to a specific area, is lake effect snow. Lake effect snow occurs most frequently during cold snaps in early winter. It happens when the transfer of heat and moisture from the warm waters of the Great Lakes to the cold air creates a shallow layer of atmospheric instability, causing air to rise quickly. As the moisture rises and condenses, it begins to fall as snow–and often, a lot of snow. Depending on which direction the winds are blowing, areas in the snow belts near the Great Lakes (including Buffalo) can see several feet of snow in just a few days. According to the National Weather Service, in the Buffalo area, when cold air from Canada moves over the still unfrozen, relatively warm Great Lakes, the lake moisture and instability from this temperature contrast build one or more bands of snow. These bands are then deposited over locations downwind from the lakes, with some areas receiving much more snow than others, depending on their location and the wind direction.
pls help me also pls have the correct answer
Answers
Answer:
Explanation:
Identify the form of energy.
mechanical energy
chemical energy
radiant energy
electrical energy
Answers
Answer:
Mechanical energy
Explanation:
Your body is doing most of the work
Explanation: The man’s leg is pushing down on the peddles (mechanical energy means to put something else in motion)
What are the 3 properties of metals?
Answers
Answer:
lustrous durable highly malleableExplanation:
brainliest plz
High density
Good conductor of heat and electricity
PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE
Answers
Answer:
AAAAAAAAAAAAAAAAAAAAAAAAA
Answer:
A. 1.67×10^-24
Explanation:
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?
Answers
Answer: C) Does the temperature affect how much crickets chirp
Explanation:
Which one is the molecule?
Oxygen (O)
Dioxygen (O2)
Answers
Oxygen is the molecule.
Answer:
Oxygen (O)
Explanation: