Which describes a light-year?(1 point)
Responses
total amount of light energy Earth receives in a year
total amount of light energy Earth receives in a year
the distance that light will travel in a year in a vacuum
the distance that light will travel in a year in a vacuum
a year on a low-gravity planet like Mercury
a year on a low-gravity planet like Mercury
the time it takes light to travel between the sun and Earth
the time it takes light to travel between the sun and Earth. this is science btw
Answers
Answer: the distance that light will travel in a year in a vacuum
Explanation:
Related Questions
can u help me and ty :))
Answers
Answer:
3.166
Explanation:
energy=30J
input =95J
efficiency=?
efficiency= input/energy
= 95/30
=3.166
Answer:
3.166
Explanation:
= 95/30
=3.166
Hope this helped!!
Which substance is a polymer found in nature?
Answers
Answer:
wool, silk, cellulose, DNA and proteins.
Explanation:
Some examples of naturally occurring polymers are wool, silk, cellulose, DNA and proteins.
Explanation=
A thickness of a material is a factor that affects heat conductivity. Does heat flow faster through a thick or a thin piece of the same material?
The surface area of a material is a factor that affects heat conductivity. Does heat flow faster through a large surface area or through a small surface area? Why? (Hint: Think about the number of particles available to bump into one another).
Change in temperature is a factor that affects heat conductivity. Will heat flow faster when there’s a large change in temperature or a small change in temperature?
Answers
Answer: It would flow through a thin piece of material easier.
Explanation:
Answer:It would flow through a thin piece of material easier.
The Law of Conservation of Energy states...
A) energy cannot be created, but it can be destroyed and change forms
B) energy cannot be created, destroyed, or change forms
C) energy cannot be created or destroyed, but it can change forms
D) energy can be created, destroyed, and can change forms
Answers
Answer:
C) energy cannot be created or destroyed, but it can change forms
Explanation:
. Ashley is identifying insects and finds a camo moth. A camo moth appears like a leaf and is able to easily blend in with its surroundings. Which of the following is one result of this characteristic?
A. The camo moth needs less food.
B. The camo moth uses less energy.
C. The camo moth has fewer offspring to care for.
D. The camo moth has a greater chance of survival.
Answers
Which answer below correctly identifies the type of change and the explanation for the boiling of water?
o physical change because even though the change caused the temperature of the water to
increase, the water's physical properties remained exactly the same
o physical change because even though gas formation was observed, the water was undergoing a
state change, which means that its original properties are preserved
chemical change because gas formation was observed, which indicated that the water was
transformed into a different substance
O chemical change because a temperature change was observed, which indicated that the water
was transformed into a different substance
Answers
Answer:
O chemical change because a temperature change was observed, which indicated that the water
Explanation:
I have taken this class
Which type of selection is shown in the graph above?
A. Disruptive selection
B. Stabilizing selection
C. Disaster Selection
D. Directional selection
Answers
In the given graph, the Evolved Population is showing disruptive selection. Hence, the correct option is A. Disruptive selection.
Stabilizing selection is a form of natural selection where individuals with average phenotypes are more likely to survive and reproduce their number. In this selection, the population tends to maintain a stable phenotype. As shown in the graph, the population is maximum for the population having a moderate length of neck.
Disruptive selection is a type of natural selection where extreme phenotypes are preferred over average phenotypes, leading to an increase in genetic variation and the population becoming more diverse. In this type of selection, the population diverges into two or more distinct phenotypic groups. As shown in the graph, two ranges of the population are favored for having traits for extreme lengths of the neck.
To learn more about Disruptive selection:
https://brainly.com/question/32192613
What is the disadvantage of using models to study the food web?
A. observations are made from inside the system
B. actual interactions are affected by the models
C. they cannot show all the interactions taking place
D. they cannot help and making predictions about a population
Answers
Answer:
Sorry for the late answer but it would be d :)
Explanation:
Answer:
C) They cannot show all the interactions taking place.
piece of roasted salted fish is put in a mouse trap. explainwhy the mouse comes to the trap
Answers
Answer: Food
Explanation:
The rat smells the food or sees the food it goes towards the food to eat it.
What is not an Example of the Coriolis effect?
Having trouble, not good at science!
Answers
Answer:
the turn of the world, shooting a bullet in the air, airplane and
rockets, bouncing ball, ocean current, driving on curved road
Explanation:
What does this diagram represent?
A) a turbine
B) a motor
C) an electromagnet
D) a generator
Answers
Answer:
Option (D) A Generator
Explanation:
A generator is an equipment that has to do with the production of electricity by the use of electromagnetic induction. The generator has split rings that make contact with the exterior.
Learn what is a Generators here
Visit —
https://brainly.com/question/12950635
Hope my answer helps you✌️
Mark BRAINLIEST
It is a generator since the electromagnetic radiation makes the coil and rod to spin
List at least three properties of matter.
Answers
Answer: Mass, Volume, shape
Explanation: that’s the three basic properties of matter
Which human activity contributes to the formation of acid rain
Answers
(C) burning fossil fuels such as coal and gasoline.
It also contributes to the formation of smog.
Burning fossil fuels such as coal and gasoline
We know that burning fossil fuels, such as coal and gasoline, is a significant human activity that contributes to the formation of acid rain.
When fossil fuels are burned, they release pollutants into the atmosphere, including sulfur dioxide (SO2) and nitrogen oxides (NOx).
These pollutants can react with water, oxygen, and other chemicals in the atmosphere to form sulfuric acid (H2SO4) and nitric acid (HNO3), which are major components of acid rain.
Therefore the correct answer is
Burning fossil fuels such as coal and gasoline
n a covalent bond: A. Both atoms share their electrons. B. One atom accepts electrons from another. C. The atoms attract each other but their electrons do not interact. D. None of these.
Answers
Answer:
Hey there!
In a covalent bond, both atoms share their electrons.
Hope this helps :)
The correct statement is that in a covalent bond, both atoms share their electrons. The correct answer is A. Both atoms share their electrons.
In a covalent bond, both atoms share their electrons to achieve a more stable electron configuration. Covalent bonds occur between nonmetal atoms, and they involve the sharing of electron pairs between the participating atoms. This sharing allows both atoms to achieve a more complete octet (or duet for hydrogen) in their outermost energy level.
Unlike ionic bonds, where one atom transfers electrons to another, covalent bonds involve a mutual sharing of electrons. This sharing can be equal (nonpolar covalent) or unequal (polar covalent) depending on the electronegativity difference between the atoms involved.
Option B, "One atom accepts electrons from another," is not characteristic of a covalent bond. That description aligns more with an ionic bond, where one atom donates electrons to another, resulting in the formation of charged ions.
Option C, "The atoms attract each other but their electrons do not interact," does not accurately describe a covalent bond. In a covalent bond, the sharing of electrons is the basis of the interaction between atoms, and the electrons of both atoms do interact and participate in the bond formation.
Therefore, the correct statement is that in a covalent bond, both atoms share their electrons.
Learn more about covalent bond from the link given below.
https://brainly.com/question/19382448
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What might happen if there is excessive water removal from the Central Valley Aquifer in California?(1 point) Responses
A. It can cause severe weather changes in California.
B. It can cause severe weather changes in California.
C. It can transform California completely to a desert.
D. It can transform California completely to a desert.
Answers
Answer:
A
Explanation:
California is surrounded by the sea so it would never run out.
What are some uses of synthetic carbon polymers?
Answers
Answer:
The polymer called Polyethylene is used in plastic bags and film wraps.
Polyethylene is utilized in the bottles, electrical insulation, toys, etc.
Polyvinyl Chloride(PVC) is used in siding, pipes, flooring purposes.
The synthetic polymer Polystyrene is used in cabinets and in packaging.
Explanation:
please mark this answer as the brainlest
1. The polymer called Polyethylene is used in plastic bags and film wraps.
2. Polyethylene is utilized in the bottles, electrical insulation, toys, etc.
3. Polyvinyl Chloride (PVC) is used in siding, pipes, flooring purposes.
4. The synthetic polymer Polystyrene is used in cabinets and in packaging.
what is the relationship between convince and suspect?
Answers
To convince someone means to persuade them to believe or do something. This involves gaining their trust and making them feel confident in your argument or proposal.
On the other hand, to suspect someone means to have doubts or distrust about their motives or actions. This involves questioning their credibility and being cautious about their intentions.
So, while convincing involves building trust and confidence, suspecting involves the opposite - doubting and being cautious.
GIVING BRAINLIEST what does red and blue make
Answers
Answer: Purple
Explanation:
Mixing the color blue and red make the color purple ( fact: purple is the least used color in country flags )
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
convert 7.10 grams of sodium to atoms.
Answers
Answer:
The answer is option A.
To convert 7.10 grams of sodium to atoms we first find the number of moles and use the formula
N = n × L
N = number of entities
n = number of moles
L = Avogadro's constant which is
6.02 × 10^23
number of moles (n) = mass / Molar mass (M)
Molar mass of sodium = 23g/mol
mass = 7.10g
n = 7.10/23 = 0.309 moles
So number of sodium atoms (N) is
N = 0.309 × 6.02 × 10^23
N = 1.86*10^23 atoms
Hope this helps you.
Answer: 1.86 x 10^23
Explanation: This comes straight from the process of mole conversions. The 1st step is to calculate how many moles of sodium you have, so you divide the grams of sodium by how many grams of sodium are in 1 mole—22.99 grams. 7.10g/22.99g = 0.3088 moles of sodium.
The next step is to multiply the moles of sodium to Avogadro’s number, which is approximately 6.02 x 10^23. So 0.3088 x 6.02 x 10^23 = 1.86 x 10^23 atoms.
Hope this helps:)
How can you put this in detail? a person in a moving bus is moving compared to building and another object outside but in rest relative to the bus itself
Answers
Answer:
Its true.
Explanation:
Because if we are in bus we are not moving ,the bus is moving . And the things around which are in rest feels that we are moving. So comparative to them we are moving. But comparison to bus we are in rest because bus is moving and we are sitting inside bus .
Students find another rock that is sandy and white. They drip hydrochloric acid on the rock, but it does not fizz. Describe the processes that contributed to the formation of this rock.
pleasee help!
Answers
Answer: The processes that formed the rocks are deposition, cementation, and erosion because there was no chemical reaction (fizz)
Explanation:
because there was no chemical reaction (fizz)
What happens to the atoms that make up hydrogen fuel as it burns?
Answers
Answer:
When hydrogen fuel burns, its atoms combine with oxygen atoms in the air, which creates a chemical reaction that releases energy in the form of heat and light. The hydrogen atoms lose their outermost electrons, becoming positively charged ions (protons). These ions combine with the oxygen atoms to form water molecules (H2O), which evaporate into the air as steam. Therefore, the atoms that make up hydrogen fuel ultimately become part of water molecules during the process of combustion.
Explanation:
Please help asap!! Tysm!♡♡
Answers
Answer: EGG
Explanation: RAW
This is science
Identify one symbiotic relationship between you and another organism.
Relate what evidence indicates that mitochondria might have had a prokaryotic ancestor.
Summarize the process by which eukaryotic cells might have evolved.
Answers
Explain how a water strider can float on the surface of water without sinking.
Answers
Answer:
low weight and great area
Explanation:
these days cloths made out of a mixture of synthetic fiber and natural fibers are more popular than those made purly out of synthetic fiber. Discuss the reason for this
Answers
Answer: Clothes purely made of synthetic fibers are not comfortable in a hot and humid environment as they don't have the property to absorb water or sweat quickly so their water-resistant property makes them unsuitable for hot humid environment .
Explanation:
Mixing of synthetic fiber and natural fibers enhances the properties such as strength, elasticity, and ease of ironing and washing. Generally in hot environments it is preferred to wear a mixture of synthetic and natural fiber than wearing only clothes made from synthetic fiber .
Moreover, mixing synthetic fibres with natural fibres enhances their properties, such as strength, elasticity and ease of washing and ironing. Hence, these days clothes made out of a mixture of synthetic fibres and natural fibres are more popular than those made purely out of synthetic fibres.
Sounds with a small amount of energy travel _________distances than sounds with more energy.
Lesson 4.07
Question 7 options:
shorter
medium
same
longer
Answers
Answer:
longer
Explanation:
this is because sounds with small energy due to production of high pitched sound travels longer distances.This sound move at a higher velocity and ata faster rate.
is philosophy is a branch of science.
Yes or No
Answers
Answer:
No.
Explanation:
philosophy is not a science. Science uses the scientific method to form hypotheses and then test them by gathering or generating empirical evidence.
Answer:
no it is not branch of science
Emily has three rods which are all the same size and are all composed of a pure substance. She wants to find out if all three rods are made of the same pure substance. To do this, she adds a piece of wax with a little bead on top to the end of each rod. She then heats up the opposite end of one rod using Bunsen burner. Emily waits for the rod to heat up completely so that the wax at the other end melts and the bead drops. She measures how long it takes for the bead to drop. She then repeats this process with the other two rods. The diagram below shows Emily's experimental setup. The results of her experiment are also shown below.
Based on this experiment and the results, what can be concluded?
A.
Rods A, B, and C are all made of different substances.
B.
Rod B is made of the same substance as rod C.
C.
Rod A is made of the same substance as rod B.
D.
Rods A, B, and C are all made of the same substance.
Answers
Answer: A
Explanation:
Rod A took 45 seconds.
Rod B took 30 seconds which is 15 seconds less than Rod A
Rod C took 60 seconds which is 15 seconds more than Rod A, and 30 seconds more than Rod B.
If all of them were made of the same substance, they all would have the same time, since they all have different times, then they all are made of different substances.