B,speedof light>speed of sound
pls help me also pls have the correct answer
Answer:
Explanation:
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! :)
Identify the form of energy.
mechanical energy
chemical energy
radiant energy
electrical energy
Answer:
Mechanical energy
Explanation:
Your body is doing most of the work
all are the following forms of energy EXCEPT:
(A)heat
(B)friction
(C)light
(D)electrical
what is the acceleration of 1 m/s?
Answer:
Newton es la fuerza que provoca una aceleración de 1 m/s2 en un cuerpo de 1 kg. La segunda ley de Newton establece que la fuerza y la aceleración son directamente proporcionales, pero no hay que olvidar el efecto de la masa.
Explanation:
You are asked to determine the identity of an unknown liquid and can only measure one physical property. You freeze the liquid and record that the liquid turns into a solid at 0 degrees C. Which physical property does this demonstrate?
melting point
boiling point
freezing point
volume
Which one is the molecule?
Oxygen (O)
Dioxygen (O2)
Oxygen is the molecule.
Answer:
Oxygen (O)
Explanation:
How is your eardrum similar to a real drum?
It vibrates.
It is unpredictable.
It produces sound.
It is hollow.
Answer:
it vibrates
Explanation:
drums vibrates to make noise, and ear drums vibrate from sound.
Answer:
it vibrates
Explanation:
i took this quiz
John writes a definition for speed and time. Speed: Speed is the distance an object moves in an amount of time Time: The amount of time is measured in seconds, minutes, or hours Which statement is correct about John's definitions? (2 points) a Both definitions are incorrect. b Both definitions are correct. c The definition for speed is correct, the definition for time is incorrect. d The definition for time is correct, the definition for speed is incorrect.
Answer:
A
Explanation:
I might be wrong but I think it's a
Answer: Speed: Speed is the distance an object moves in an amount of time. Time: The amount of time is measured in seconds, minutes, or hours.
Explanation: Because the amount of time measured
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
Answer:
A
Explanation:
Because density is a physical property and the rest are all chemical properties
Answer:
A
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:
What is the basic building block of all pure substances that make up matter in the world? A. atoms B. cells C. compounds
Answer:
a) Atoms
Explanation:
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
How do planets with larger masses apply greater gravitational forces on objects compared to planets with less mass?
⇒ Please answer in your own words
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
What kind of spider has red legs & a black body? I just saw this kind of spider past by my window-
Answer:
red legged purseweb spider
Explanation:
Will not cause death but still stay away if you are sensative to all spiders.
“ 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:
Pls, Help! 35 Points!
How can geothermal energy be used?
A fuel vehicles
B capture solar power
C power hybrid vehicles
D generate electricity
Answer:
generating electricity hope this helps have a nice day ;)
Explanation:
Answer:
d
Explanation:
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
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Answer:
canola oil goes on top below that is salt water below that is ether and below that is corn syrup
Explanation:
Which of the following describes a mixture?
a. formed from two or more substances chemically combined
b. can be separated only by chemical means
c. made up of two or more substances that keep their identities
d. made up of two or more substances joined in a specific ratio
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:
Which interaction occurs when light goes into an object as heat energy?
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:
1) Would a person's weight on Earth be the same as it would be on the moon? Explain using the key words weight, mass & gravity.
Answer:
The force gravity exerts on a person determines the person's weight. Even though your mass would be the same on Earth and the moon, if you weigh 132 pounds (60 kilograms) on Earth, you would weigh about 22 pounds (10 kilograms) on the moon.
Explanation:
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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:
1
Which of the following describes compounds?
a. are composed of two or more elements that are chemically combined
b. are random combinations of elements
c. are composed of elements that join in a specific ratio according to their masses
d. have the same characteristic properties as the elements that form them
Answer:
A
Explanation: The definition of a compound is two elements chemically connected
What are the 3 properties of metals?
Answer:
lustrous durable highly malleableExplanation:
brainliest plz
A rock is taken from the Moon back to Earth. Which of the following correctly
describes the changes to its mass and weight?
a. Its mass has no change, and its weight decreases.
b. Its mass has no change, and its weight increases.
c. Its mass decreases, and its weight has no change.
d. Its mass increases, and its weight increases
The mass of the rock remains unchanged, and its weight increases.
What is Weight ?
Weight is the force exerted by the earth on an object at the surface of the earth. Mathematically -
W = m x g
where -
m is the mass of object
g is acceleration due to gravity
Given is a rock is taken from the Moon back to Earth.
Mass and weight are completely different from each other. Mass is the amount of matter present inside the body whereas weight is the force exerted by earth on any object on its surface. Mathematically -
W = mass x acceleration due to gravity
W = Mg
The ratio of Weight to mass is [g] (9.8).
W/M = g
Mass of a body remains constant throughout the universe but its weight depends upon the value of acceleration due to gravity of the environment of the planet or any other celestial body in which it exists. Hence, because of this only, the mass of rock remains same but its weight increases as it is brought back to earth since the acceleration due to gravity on earth is greater than that on moon.
Therefore, the mass of the rock remains unchanged, and its weight increases.
To solve more questions on Mass and weight, visit the link below-
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What answer best describes Carbon Dioxide (CO2)?
compound
molecule
element
Answer:
Molecule
Explanation:
Hope this helps!
2) In the formula p=mv, identify the word that each letter stands for.
Answer:
p = momentum
m = mass
v = velocity
Hope this helps!