What is the purpose of the background research step of the scientific method?

Answers

Answer 1
Background research is used to familiarize yourself with the topic or problem you're conducting your experiment on and help you form an educated guess explaining or solving it that will become your hypothesis. 

Related Questions

What is the chemical formula for chalk

Answers

CaCO3 calcium carbonate
Chalk is a soft sedimentary carbonate rock, a form
of limestone composed of the mineral calcite.
Calcite is a salt called calcium carbonate or CaCO3.

Making a diagram show the forces acting on the coasting bike rider traveling 25 km/h on a flat Roadway

Answers

Up+/down–

According to newton's first law if it is going at a constant 25km/h, Fnet=0, so FN-Fg=0 and thus FN=Fg

-Fg (mg)
FN (-mg)

Explain how the specific heat of water helps keep our bodies from overheating

Answers

This high specific heat of water prevents abrupt changes in temperature and helps the body maintain temperatures that are relatively constant.

Water's high specific heat capacity helps regulate body temperature by acting as a heat sink and through sweat production, which dissipates heat via evaporation, thus maintaining homeostasis.

The specific heat of water plays a crucial role in preventing our bodies from overheating. Water's ability to absorb a large amount of heat before its temperature rises significantly is due to hydrogen bonding among water molecules, which gives water the highest specific heat capacity of any liquid. This high heat capacity means water serves as an effective heat sink, regulating the body's core temperature by absorbing metabolic heat and dispersing it without causing sudden changes in body temperature.

Additionally, the body utilizes water's properties through sweating. When we sweat, water is brought to the surface of the skin, and as it evaporates, it takes away excess thermal energy, effectively cooling the body. This mechanism is particularly vital when environmental temperatures rise or during physical exertion. It also underscores the importance of staying hydrated to maintain sufficient sweat production and effective temperature regulation.

To summarize, water's high specific heat capacity ensures that our bodies can manage and balance internal temperatures effectively, acting like a car's cooling system, where it transports heat from warm areas to cooler areas, thus maintaining homeostasis.

Which tower is more likely to fall?

Answers

The tower that is likely to fall is C because both towers are more likely to fall or remain stable.

The concept at play here is center of gravity.

The center of gravity (CG) position is the average location of an object's weight. The center of gravity of an item is its balancing point, often known as the place where all of its mass seems to be located.

The following formula is used to calculate the position of the center of gravity based on the moment measurement: M = W x d: Where M is the applied moment, W is the object's weight, and d is the distance from the pivot point to the object's center of gravity.

Since both towers are the same in height and width, we can estimate that both towers are likely to fall or remain stable.

What is one reason why rock layers are not horizontal

Answers

they are not perfectly horizontal because the wind and earth don't always make perfect lines.

Answer:

Because of the deposits.

Explanation:

One of the reasons why rocks layers are not horizontal is because of the deposits and kinds of the walls that are next of the deposits

They are not necessarily always parallel. They have a natural inclination delimited by the walls.

This is determined by the age of the strata; the youngest deposits are taking the form of the oldest deposit.

However, part of the unique factors that determine the deposits (shape and alignment) of the layers are the organisms that lived and, therefore, could be fossilized. These factors are not repeatable since they are organisms that will not exist again.

Fossils are an essential part of the Earth's layers, as they help study the stages and shapes of the layers.

There is also another factor when magma is introduced in the form of a fault line and crystallizes in the middle of the Earth's layers. modifying the sequence of the affected rocks, becoming a young layer (not horizontal, due to its penetration into the layers of the Earth).

What type of wave is produced when you move one end of a horizontal spring up and down?

A) Transverse Wave
B) Compression(longitudinal) Wave
C) Both type of waves are produced
D) None of the above

Answers

a. a transverse wave is produced

which of the following is NOT a developer of an atomic model?
A-Dalton
B-Planck
C-Rutherford

Answers

B) Planck. He is not a developer of an atomic model.
Final answer:

Max Planck, referred to in option B, is the correct answer as he did not develop an atomic model; he is known for his contributions to quantum mechanics.

Explanation:

The individual who is NOT a developer of an atomic model is B-Planck. John Dalton, mentioned in option A, is known for his early 19th-century work on atomic theory, positing that atoms are indivisible and unique for each element. Rutherford, listed in option C, developed the nuclear model of the atom after conducting his famous gold foil experiment, which showed that atoms have a small, dense nucleus surrounded by electrons. Max Planck, referred to in option B, is renowned for his work in the field of quantum mechanics, particularly the quantum theory of radiation, but he is not attributed with an atomic model as the others are.

Colton has trouble remembering information for his tests because he crams the night before. Which would be the best study habit for Colton to commit to

Answers

Final answer:

Colton should use flashcards, apply the self-reference effect, and employ distributed practice to improve his study habits for better memorization and test performance. He should also ensure he gets enough sleep, use mnemonic devices, and maintain a healthy lifestyle.

Explanation:

Effective Study Habits for Better Memorization

For Colton to improve his performance on tests, committing to better study habits is crucial. One of the most effective methods is using flashcards for active recall. Writing questions on one side and answers on the other can significantly help with memory retention. It's also advisable to apply the self-reference effect by personalizing the study material so it becomes more meaningful. Moreover, employing distributed practice-spacing out study sessions over time rather than cramming the night before-will give his brain the necessary time to consolidate memories. Regular rehearsal, review, and linking new information to known information are valuable techniques for enhancing long-term memory.

Other important strategies include getting enough sleep, utilizing mnemonic devices for easier recall, studying efficiently by practicing active learning over passive highlighting, and having a well-organized study environment. All these habits enable better metacognition and reduce stress, leading to improved recall and performance on tests.

Finally, maintaining a healthy lifestyle, such as avoiding heavy meals before a test and ensuring ample relaxation is essential for optimal cognitive function during the examination.

Final answer:

For improved memory retention, Colton should use flashcards, practice elaborative rehearsal, apply the self-reference effect, engage in distributed practice, take good notes, avoid cramming, get enough sleep, and use mnemonic devices.

Explanation:Effective Study Habits for Improved Memory Retention

For Colton to improve his ability to remember information for his tests, committing to effective study habits is crucial. The night before cramming can lead to poor retention and understanding of the material. Instead, Colton should consider strategies like using flashcards, engaging in elaborative rehearsal, employing the self-reference effect, and embracing distributed practice. Creating flashcards helps organize thoughts and subjects, making it easier to see connections and understand concepts. Colton should also frequently rehearse the material over time to allow for memory consolidation, personalize his study notes to make the material more meaningful, and avoid cramming for enhancing long-term retention.

Additionally, good study spaces, careful note-taking, and avoiding all-nighters and large meals before exams can contribute to a better study regimen. Getting a sufficient amount of sleep is another key aspect, as sleep helps with the organization and consolidation of information for long-term memory. Finally, mnemonic devices can be particularly useful for memorizing specific details such as formulas, terminology, or sequences.

By adopting these methods, Colton can improve his retention and understanding, which will likely lead to better test performances. It is important for Colton to practice persistence and patience, as developing new study habits takes time and dedication but can ultimately lead to academic success.

Make a diagram showing forces acting on a coasting bike rider traveling at 25km/h on a flat roadway

Answers

If he's coasting on a flat road, then there is no acceleration ...
his speed is constant and he's moving in a straight line.

No acceleration means the net force acting on him is zero.

Horizontal forces add to zero:
Nothing pushing him from behind.
Nothing pulling him from in front.
No horizontal forces.

Vertical forces add to zero:
Force of gravity pulling him down, equal to the weight of him plus the bike.
Equal normal force, pushing him up, exerted by the road.

Why can certain stars sometimes be identified as eclipsing binary stars?

Answers

They become dimmer at regular intervals. 

This question is incomplete. Here is the complete question:

1. Why can certain stars sometimes be identified as eclipsing binary stars?

A. They are brighter than any single star

B. They are all white dwarfs

C. They become dimmer at regular intervals

D. They are cool red stars

Answer:

The correct answer is option C. They become dimmer at regular intervals .

Explanation:

Eclipsing binary stars are those that we can see as a point of light, but in reality they are two stars that orbit one close to the other.

When one star passes in front of the other, the observer can see how the intensity of the brightness varies. Algol is the best known eclipsing binary star and has an eclipse interval of 173 hours (2.9 days).

These stars orbit an eclipsing binary star system, where one star outshines another.

balanced rock has a mass of about 36,000 kg. if the acceleration due to gravity is 9.8 meters per second squared, what is the force that the rock is exerting on its pedestal?

Answers

The force the rock is exerting on its pedestal is, according to the formula used to calculate force, which is Force = Mass * Acceleration, is 352,800.

describe how pieces of rope move as waves pass

Answers

Well, as the waves move it moves the rope as if its trying to take shape of it. Since the rope it light it will move along the ocean and the ocean will keep pushing up on the rope. (even without the waves the water is pushing the rope up so it can take its shape)

Maybe that'll help

As waves pass through a rope, the rope's particles move up and down in a transverse wave pattern, while the wave energy travels horizontally along the rope's length.

When waves pass along a rope, the motion of the rope can be described as a transverse wave. Each particle (or atom) within the rope moves in a direction perpendicular to the wave's direction of travel, generally up and down.

As a wave travels from one end of the rope to the other, the particles of the rope move up and down but their horizontal position doesn't carry along with the wave. Instead, it is the wave's energy that moves along the rope.

Imagine tying a ribbon to the middle of the rope. As the wave passes through that point, the ribbon will move vertically (up and down), illustrating the motion of a single particle within the rope.

The wave itself travels horizontally along the length of the rope. This is similar to the movement observed when wind creates waves on water. Particles of water move in circular orbits; however, in the case of a rope, the particles simply move up and down.

The direction of the pulses, or waves, is from the point where the wave is initiated to the other end of the rope. If an observer were to generate a wave by quickly flicking one end of the rope, they would see a series of peaks and troughs traveling away from them along the rope. This represents the energy being transferred through the medium, in this case, the rope.

what is the answer and what would the work be?

Answers

The answer would 18 if you multiply 3*3*2

Talia loves to jump rope. she jumps 879 times in 403 seconds. at what speed is she jumping.

Answers

2.2 jumps per second
Final answer:

Talia's jumping speed is calculated by dividing her total number of jumps (879) by the total time taken (403 seconds), which equals approximately 2.18 jumps per second.

Explanation:

The student asks about the speed at which Talia is jumping rope. To find the speed, we need to divide the total number of jumps by the total time.


Talia jumps 879 times in 403 seconds. To find her jumping speed, we do the following calculation:


Speed = Total jumps ÷ Total time = 879 jumps ÷ 403 seconds ≈ 2.18 jumps per second.


So Talia is jumping at an approximate speed of 2.18 jumps per second.

which two particles would be attracted to each other?
A- electrons and neutrons
B-electrons and protons
D- all particles are attracted to each other

Answers

A. electrons and neutrons B. electrons and protons C. protons and neutrons D. all particles are attracted to each other. According to atomic theory, electrons are usually found: A. in the atomic nucleus B. outside the nucleus, yet very near it because they are attracted to the protons.

A force is applied to an object at rest with a mass of 100 kg. The same force is applied to an object at rest with a mass of 1 kg. What differences in their motion would you observe? Explain your reasoning.

Answers

The object with a mass of 100 kg would move slower than the object with a mass of 1 kg. This is because a greater force is required to move the object with a mass of 100 kg compared to the object of 1 kg.

Answer: the object with less mas will move faster than the other object.

Explanation: Let's do a simplification of this case, I will only use newton's second law, this law says F = ma

where f is force, m is mass and a is acceleration.

Then, if in bot objects the force is the same, let's call it F, we have:

F = 100kg*a1

and

F = 1kg*a2

now let's isolate the accelerations:

a1 = F/100kg

a2 = F/1kg

here we can see that a2 is bigger than a1, this means that the object with less mass has a bigger acceleration, then the object with less mass will move faster than the object with more mass.

A basketball has a mass of 1 kg and is traveling 12 m/s. How fast would a 6 kg bowling ball have to travel to have the same momentum?

1 m/s
2 m/s
3 m/s
4 m/s

Answers

plz feel free to adk more if u hv any confusion!!!

Answer:

It would be 2kg m/s

Explanation:

determine the kinetic energy of a 1000 kg roller coaster car that is moving with a speed of 20.0 m/s

Answers

mechanical energy? ? ?

To determine the kinetic energy of the roller coaster car, use the formula KE = ½ m v² with mass and velocity values. In this case, the kinetic energy is 200,000 J.

The kinetic energy of the roller coaster car can be calculated using the formula:

KE = ½ m v².

Plugging in the values, we get KE = ½ (1000 kg) (20.0 m/s)² = 200,000 J.

What does the law on conservation of momentum state

Answers

The law of conservation of momentum for an isolated system of consisting 2 bodies states that : " when the net external force acting on a system is zero, the total linear momentum of the system remains constant".

becquerel thought that ____ was necessary for minerals to give to give off energy that passed through paper?
A- water
B- sunlight
D- uranium

Answers

B sunlight, because the sun has energy and that gives the soil energy and the plant take that energy and is able to grow.

Which of the following answers describe how to calculate the acceleration of an object?
A. Divide the change in the objects velocity by the time it takes to make that change.
B. Divide the time the object travels by the distance it travels.
C. Calculate the distance the object travels and divide that by the time it takes to get there.
D. Calculate the velocity of an object and divide that by the time the object is in motion.

Answers

I think it's A I hope this is right but I just studied this so I think this is the right answer

A. Divide the change in the objects velocity by the time it takes to make that change.

Explanation:

Acceleration is a vector quantity whose magnitude is given by the following equation:

[tex]a=\frac{\Delta v}{\Delta t}[/tex]

where

[tex]\Delta v[/tex] is the change in velocity of the object

[tex]\Delta t[/tex] is the time it took to make the change in velocity

Therefore, we see that this equation corresponds to choice A.

Is this statement true or false? Cnidarians help build up coral reefs.

Answers

Definitely true, they build them up.
They do in fact help build up coral reefs. 

what are the two main factors that affect how quickly a coastline erodes?

Answers

Factors Affecting the Rate of Erosion. The biggest factor affecting coastal erosion is the strength of the waves breaking along the coastline. A wave's strength is controlled by its fetch and the wind speed.
Final answer:

The topography and climate of an area, particularly wind and temperature, are the key factors determining how quickly a coastline is subject to erosion.

Explanation:

The two main factors that affect how quickly a coastline erodes are topography and climate.

The term 'topography' refers to the arrangement of the natural and artificial physical features of an area, and these physical features, or 'lay of the land', can influence erosion. For example, water runoff can strip away land material, leading to erosion, and steep areas are more prone to erosion than flat or leveled terrains.

On the other hand, the climate of a location, or more specifically wind and temperature, has a significant effect on coastline erosion. Areas characterized by high winds or rapid temperature changes can experience faster erosion due to increased rates of evaporation, transpiration, and disruptions in ocean currents triggered by wind or temperature variance.

Learn more about Coastline Erosion here:

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describe two types of volcanic fields

please help

Answers

A stratovolcano is a conical volcano consisting of layers of solid lava flows mixed with layers of other rock.

A cinder cone volcano doesn’t have any horizontal layers, and is instead a steep conical hill of tephra that accumulates around and downwind from the vent.

Composite volcanoes are steep, symmetric cones with viscous lava and explosive eruptions, while shield volcanoes are massive and slope gently with fluid lava and effusive eruptions. Both types pose different hazards to humans and infrastructure.

Composite volcanoes, also known as stratovolcanoes, are characterized by their steep-sided symmetrical cones. They are formed from multiple layers of lava that is more viscous and ash, due to their explosive eruptions. These volcanoes generally have a crater at the summit containing a central vent, with lava flows emerging from breaks in the crater walls or from fissures on the volcano's flanks. Examples include Mt. Fuji in Japan and Mt. Rainier in Washington.

Shield volcanoes, in contrast, have a massive, gently sloping profile. These volcanoes erupt with effusive or quiet eruptions, with very fluid lava that spreads far from the central vent, forming wide bases. An example of a shield volcano is Mauna Loa in Hawaii.

Understanding the differences in eruption style and the geological processes that form these types of volcanoes is critical for predicting the hazards they may pose to people and infrastructure.

What is the name of the hair-like structures on sponge cells that move back and forth to help move water, nutrients, and waste through the canal? A. ostia B. flagella C. osculum D. canal

Answers

I think it's B. Flagella

I believe it is B. Flagella. I hope this helps you :)

When combined in the correct ratio, hydrogen and oxygen atoms can form water. These particles that water is made of are example of

Answers

Final answer:

Water is formed via covalent bonding of hydrogen and oxygen atoms, demonstrating the principle of elements joining to fill their valence shells. This process is a representation of a simple chemical reaction, following the law of conservation of matter.

Explanation:

Water molecules, formed by the combination of hydrogen and oxygen atoms, are an excellent example of covalent bonding.

The ratio of hydrogen to oxygen in water is 2:1, giving us the well-known formula H2O. Both hydrogen and oxygen atoms share electrons to fill their outer shells, making them more stable.Atoms of any element tend to join with atoms of other elements in systematic ways to form various compounds. For instance, other than water, we have the carbon-hydrogen combination resulting in methane (CH4). This is dictated by the requirement of elements to fill their valence shells.The reaction of hydrogen and oxygen to form water is a simple but vital chemical reaction occurring in nature. It exemplifies the fundamental principle of a balanced chemical equation, adhering to the law of conservation of matter where the total number of atoms remains the same before and after the reaction.Learn more about Covalent Bonding here:

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What are the two parts of an atom?

Answers

Actually its three way 
Neutrons
Electrons
protons 
there are three parts to an atom- protons neutrons and electrons. if you are talking about the core then those would be protons and neutrons
protons have mass and a positive charge 
neutrons have mass and dont have a charge
electrons have no mass and are negatively charged 

Calculate the density of a substance with a volume 25 cm3 and mass 50 grams

Answers

To calculate density, we have to divide the mass by the volume; so, 50/25 = 2
The answer is a density of 2cm^3/per gram.

Amy has a mass of 50kg she is riding a skateboard traveling 10m/s what is her momentum?

Answers

I go to a British school so I'm going to assume momentum = kinetic energy. Not sure if this is what you learnt in class.

KE = 0.5 x mass x velocity^2
KE = 0.5 x 50 x 10^2
KE = 2500 Joules

4. Two kids are roller skating. Amy, with a mass of 55 kg, is traveling forward at 3 m/s. Jenny, who has a mass of 40 kg, is traveling in the opposite direction at 5 m/s. They crash into each other and hold onto each other so that they move as one mass. How fast are they traveling?

Answers

55*3-40*5=x*95
165-200=95x
x=7/19 ms-1
55*3-40*5=x*95 165-200=95x x=7/19 ms-1

hope it helps ^_^
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