Quality research most commonly refers to the scientific. process encompassing all aspects of study design; in. particular, it pertains to the judgment regarding the match. between the methods and questions, selection of subjects, measurement of outcomes, and protection against.
Answer:
Research is "creative and systematic work undertaken to increase the stock of knowledge". It involves the collection, organization, and analysis of information to increase understanding of a topic or issue. A research project may be an expansion on past work in the field.
Explanation:
hence, the force needed to accelerate the 1000kg car by 3m/s2 is 3000N
Answer:
i'll answer your question but follow me first
A baby elephant trots in a straight line along river. The horizontal position of the elephant in meters over time is shown below. Questions: 1. What is the displacement of the elephant between 8 s and 24 s ?2. What is the distance traveled by the elephant between 8s and 24s?
looking at the graph,
1) Displacement includes direction
Displacement from 8s to 16s = 15 - 6 = 9
Displacement fbetween 16s and 24s = 0 - 15 = - 15
Displacemet between 8s and 24s = 9 - 15
Displacemet between 8s and 24s = - 6m
2)
Distance does not include direction
from 8s to 16s,
distance travelled = 15 - 6 = 9 m
From 16s to 24s,
distance travelled = 15 - 0 = 15
Total distance between 8s and 24s = 9 + 15
Total distance between 8s and 24s = 24 m
you’re posting a listing on the mls. which of the following are you allowed to do according to most mls guidelines?
When creating a listing on the MLS (Multiple Listing Service), it is essential to adhere to specific rules and guidelines.
Here are some generally allowed practices according to most MLS guidelines:
Accuracy and Truthfulness: Provide precise and truthful information about the property in the listing. It should accurately represent the property's features, condition, and availability.
Current and Up-to-date: Ensure that the property is currently available for sale or lease and that the information provided in the listing is current and up-to-date. Any changes in availability or status should be promptly reflected.
Multiple Images: Include multiple images of the property in the listing. However, the images should not be misleading or misrepresent the property's condition or features.
Compliance with Laws: Ensure that the listing complies with fair housing laws and other relevant laws and regulations. Avoid any discriminatory language or practices that may violate fair housing guidelines.
Complete and Error-free: Ensure that all data fields in the listing are completed accurately and there are no errors or omissions in the information provided.
By following these guidelines, the MLS listing can effectively and transparently present the property, attracting potential buyers or tenants while maintaining compliance with applicable laws and regulations.
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how to find the velocity
To find velocity, you need to divide the distance traveled and the time it took to travel that distance.
Velocity is a vector quantity that indicates the rate of change of an object's position in a given direction. It is calculated by dividing the change in position of an object by the time interval over which the change occurred.
The formula for velocity is,
velocity = distance / time
For example, if a car traveled 100 meters in 10 seconds, the velocity would be,
velocity = 100 meters / 10 seconds
velocity = 10 meters per second
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Two jars are placed on a counter with a McDonald’s French fry inside. One has a lid, the other does not. They are left alone to see which one decays faster. After two days, the fry in the closed jar looks fresher.
The independent variable is?
The dependent variable is?
What should my conclusion be?
1. If a pair of running shoes would weigh 11.55 newtons on Jupiter, what is the strength of gravity there?
2. If the same pair of shoes weighs 0.3 newtons on Pluto, what is the strength of gravity on pluto?
3.What does the pair of shoes weigh on earth?
The strength of gravity of planets Jupiter and Pluto are 23.1m/s² and 0.6m/s² respectively.
We are given that,
The mass of the shoes = m=0.500 kg
The weigh of the shoes on the Jupiter = W₁=11.55 N
The weigh of the shoes on the Pluto = W₂=0.3 N
Therefore, the weight to mass ratio determines the strength of gravity, or the acceleration caused by gravity.
Then the strength of gravity on Jupiter can be calculated as,\(g_{j} = \frac{w_{1} }{m}\)
Putting the values in above equation we can get,
\(g_{j} = \frac{11.55N}{0.500kg}\\ g_{j} = 23.1m/s^{2}\)
Since, the gravity strength of planet Jupiter would be 23.1m/s²
The strength of gravity of planet Pluto can be calculated when shoes weigh is 0.3 N,\(g_{p} =\frac{w_{2} }{m} \\g_{p} = \frac{0.3N}{0.500kg} \\g_{p} = 0.6 m/s^{2}\)
Thus, the gravity strength of planet Pluto may be 0.6m/s².
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energy released in a chemical reaction comes from ?
This planet has bedrock, reddish dust, and ice caps. What planetary body is it? Source: NASA James Bon Cornell University, Michael Wolff (Space Science Institute), and the Hubble Heritage Team (STSCVAURA) Neptune Earth's moon Mars Mercury Venus
Mars is the planetary body that has bedrock, reddish dust, and ice caps. This information comes from sources such as NASA, James Bon Cornell University, Michael Wolff (Space Science Institute), and the Hubble Heritage Team (STSCVAURA).
Mars, the fourth planet from the Sun in our solar system, is characterized by its reddish appearance due to the iron oxide (or rust) present in its soil and dust. The bedrock on Mars is made up of various types of rocks, such as basaltic rocks and sedimentary rocks, which have been shaped by geological processes over time. In addition to the bedrock and reddish dust, Mars is also known for its ice caps, which are primarily composed of water ice with some frozen carbon dioxide. These ice caps are located at the planet's north and south poles and provide valuable information about Mars' climate history and potential for future human exploration.
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I need help with some graph.
Which graph shows acceleration?
Answer:
The first graph
Explanation:
Graph A shows acceleration.
a person riding in an elevator stands on a metric scale. if the mass of the person is 60.0 kg and the elevator accelerates upward with an acceleration of 4.90 m/s2, what is the reading on the scale?
The reading on the scale is 882.6 N when the elevator accelerates upwards with an acceleration of 4.90 m/s².
Given that the mass of a person is 60.0 kg and the elevator accelerates upwards with an acceleration of 4.90 m/s², we have to determine the reading on the scale.
Let F be the force exerted by the scale on the person. Then, by Newton's second law of motion, the net force acting on the person is Fnet= m * a
where m = 60.0 kg is the mass of the person and a = 4.90 m/s² is the acceleration of the elevator. Hence, the net force acting on the person is given by;
Fnet = 60.0 kg * 4.90 m/s²
Fnet = 294.0 N
Therefore, the scale reading is equal to the force exerted by the scale on the person. Since the elevator is accelerating upwards, the force exerted by the scale on the person is greater than the weight of the person, which is the force of gravity acting on the person.
The force of gravity acting on the person is given by;
Fg = m * g, where g = 9.81 m/s² is the acceleration due to gravity. Hence, the force of gravity acting on the person is given by;
Fg = 60.0 kg * 9.81 m/s²Fg = 588.6 N
Therefore, the scale reading is given by the sum of the force of gravity acting on the person and the net force acting on the person;
F = Fg + Fnet
F = 588.6 N + 294.0 N
F = 882.6 N
Thus, the reading on the scale is 882.6 N when the elevator accelerates upwards with an acceleration of 4.90 m/s².
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describe two methods by a magnet can be demagnetized
Answer:
Demagnetizing a magnet :
By hitting with a hammerBy heating with a high temperatureBy dropping the magnetIf a car is moving at 12 m/s without accelerating, how far will it go in 15 s?
Type a response
Show Your Work
Answer: 174
Explanation:
12 x 15 = 174
a green laser pointer emits light with a wavelength of 532 nm . what is the frequency of this light?
The light frequncy of the green laser pointer, which is identified as green light, with the given wavelength is 5,639 × 10^14 hz
The question you asked about is related to light frequency. The frequency is the number of waves that go through a given place in space in a given amount of time, typically one second.
In this case, frequency (f) and wavelength (λ) are combined in the equation fλ=c , where c is the speed of light: 3 × 10^8 m/s. Then, the equation to find frequency (f) is f=c/λ
Given wavelength is 532 nm = 5,32 × 10^-7 m and speed of light is 3 × 10^8 m/s. As a result:
f=c/λ
f=(3 × 10^8 m/s) / (5,32 × 10^-7 m)
f= 5,639 × 10^14 hz
As a result, the frequency of this light is 5,639 × 10^14 hz
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A rocket is burning fuel at the rate of 300g/s and electing all the gas. In one direction of the rate of 500m/s what is maximum weight the rocket burn have if it going to move Vertically upward.
Correct option is D)
Overall momentum of the system is conserved.
Therefore, change in momentum of the rocket will be equal to that of the fuel.
Change in momentum of the fuel will be
Δmv=60000
Hence, change in momentum of the rocket will also be:
△P=60000
Thrust force F=
△t
△p
F=60000 N
A ball is dropped from the top of a cliff. Which graph best represents the relationship between the ball's total energy and the elapsed time as the ball falls to the ground?
Graph A does.
The work you do to carry the ball up to the top of the cliff is the total energy it has.
Before you drop it, all that energy is potential energy.
Once you drop it, the potential energy starts to turn into kinetic energy as it falls.
When it hits the ground, its kinetic energy is exactly the amount of potential energy it had at the top, and it has no more potential energy.
The total (potential + kinetic) energy is the same amount all the way down. Energy isn't created or destroyed.
The graph that shows the ball's total energy and the elapsed time as the ball falls to the ground is graph A.
For a body that is falling from a height, the potential energy of the body is being converted to kinetic energy. We must note that the total mechanical energy of the body is constant.
As such, the graph that shows the ball's total energy and the elapsed time as the ball falls to the ground is graph A.
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When earth catches up to a slower-moving outer planet and passes it in its orbit, in the same way that a faster runner overtakes a slower runner in an outside lane, the outer planet.
When Earth gets closer to a slow-moving outer planet and surpasses it in its orbit, that outer planet shows retrograde motion, similar to how a quicker runner goes past a slow runner in the outside lane.
The orbital movement of a spatial entity in the opposite direction of what is usual in a specific system is known as retrograde motion. The term "retrograde" is based on the Latin terms retro, which means "backward," and gradus, which means "step." As observed from Polaris, all main planets in the Solar System circle the Sun counterclockwise.
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what does it mean when a energy resource is said to be "non-renewable"? please help
Answer:Non-renewable energy comes from sources that will run out or will not be replenished in our lifetimes—or even in many, many lifetimes
and non-renewable energy sources are fossil fuels: coal, petroleum, and natural gas
Which of the following statements regarding lightning strikes is correct?
Select one:
A. Victims who are struck by lightning often experience severe full-thickness burns.
B. Cervical spine fractures are the most common cause of lightning-related deaths.
C. The tissue damage pathway caused by lightning usually occurs through the skin. Incorrect
D. Lightning often results in a brief period of asystole that resolves spontaneously.
The correct statement regarding lightning is as follows: Victims who are struck by lightning often experience severe full-thickness burns (option A).
What is lightning?Lightning is an electrical discharge caused by imbalances between storm clouds and the ground, or within the clouds themselves.
Lightning strike is a lightning bolt, stroke of lightning, one of the events during an electrical storm when lightning strikes (an object on) the ground or an aircraft in flight.
Most deaths after lightning strikes occur either because of primary cardiac arrest or hypoxia-induced secondary cardiac arrest, however, survivors have experienced debilitating injuries, burns and ongoing disability, including symptoms like seizures and memory loss.
Therefore, severe full-thickness burns are the symptoms or signs of lightning strike.
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You are trying to overhear a juicy conversation, but from your distance of 25.0 m , it sounds like only an average whisper of 20.0 dB . So you decide to move closer to give the conversation a sound level of 70.0 dB instead. How close should you come? (in cm)
Answer:So You Decide To Move Closer To Give The Conversation A Sound Level Of 80.0dB Instead. ... You are trying to overhear a juicy conversation, but from your distance of 24.0m , it sounds like only an average whisper of 40.0dB .
Explanation:
Inertia is an object's natural tendency to remain in constant motion or at rest. An object moving through outer space, for example, will continue moving in one direction and at a constant speed due to its inertia, if no other forces act on it. Why do planets constantly change the direction in which they move
Option B, C, and E are correct. First principle of motion options that address the issue include Before an item may move, it must be subjected to a net force. The inertia rule is another term for the first principle of Newton's theory of motion.
InertiaNewton's fundamental law holds valid whether or not an object is moving. Newton's first law can be viewed as the law of inertia. It helped us understand that when a body is at rest, it will remain immobile unless an external force is added to it, or that if a body is moving at a constant rate, it will continue to move until an external force is applied to it.Only when a net force is applied will a body move from its resting state. This law is demonstrated whenever a passenger in a car fastens their seat belt. This rule applies to both stationary and moving items. Thus, alternatives B, C, and E are correct.For more information on inertia kindly visit to
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Complete question: Inertia is an object's natural tendency to remain in constant motion or at rest. An object moving through outer space, for example, will continue moving in one direction and at a constant speed due to its inertia, if no other forces act on it. Why do planets constantly change the direction in which they move?
A. Most planets do not have any inertia, so their motion constantly changes.
B. The force of gravity acts on planets and changes the direction of their motion.
C. Each planet's inertia is constantly changing from one moment to the next.
D. There are no forces acting on the planets as they move in orbits around the Sun.
How much kinetic energy does the popper have right after leaving the surface of the table or floor?
Loss in mechanical energy= change in PE
=mg(h2-h1)
= 2.5 × 1/10³⁰
What is energy?
Common forms of energy include kinetic energy of a moving object, potential energy stored by an object (for example due to its position in a field), elastic energy stored in a fixed object, chemical energy associated with chemical reactions, radiation. Energy carried by electromagnetic radiation and internal energy contained in a thermodynamic system. All living organisms constantly receive and release energy.Due to the equivalence of mass and energy, any object that has mass when it is at rest (called rest mass) also has an equivalent amount of energy, the form of which is called rest energy, and any additional energy (of whatever form) gained by the object above that rest energy. it will increase the total mass of the object as well as increase its total energy.To know more about energy, click the link given below:
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L= 1 H and R = 3.9 KQ. V (w) Vi (w) b) Sketch the magnitude of the frequency response function H(w). c) Determine what type of ideal filter is approximated by this circuit. a) Find H (w) = + vi(t) L R + vo(t)
The circuit has a constant gain of 1 for high frequencies, implying that it acts as a low-pass filter. To find the frequency response function H(w) for the given circuit, we need to determine the transfer function H(w) = V0(w) / Vi(w), where V0(w) is the output voltage and Vi(w) is the input voltage in the frequency domain.
L = 1 H (inductance)
R = 3.9 KΩ (resistance)
The circuit can be represented by the following equation:
H(w) = (jwL + R) / (jwL + R + 1)
To sketch the magnitude of the frequency response function H(w), we need to plot the magnitude |H(w)| as a function of frequency w.
Taking the magnitude of the transfer function, we have:
|H(w)| = |(jwL + R) / (jwL + R + 1)|
Next, let's analyze the type of ideal filter approximated by this circuit. We can examine the transfer function to determine the filter characteristics.
From the transfer function:
H(w) = (jwL + R) / (jwL + R + 1)
As w approaches infinity, the jwL term dominates the transfer function, and the transfer function becomes:
H(w) ≈ jwL / jwL = 1
This indicates that the circuit has a constant gain of 1 for high frequencies, implying that it acts as a low-pass filter. It allows low-frequency signals to pass through relatively unattenuated while attenuating high-frequency signals.
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Horticulture (HURRY) 120 pts
Specialized technology works well in
, where the uniformity of the crop encourages tight-focused machines rather than unspecialized machines that can be adapted for multiple tasks
Horticulture is a field that greatly benefits from specialized technology. This is because the uniformity of crops in horticulture allows for machines that are tightly focused on specific tasks.
These machines are designed to perform specialized functions such as planting, pruning, and harvesting. This specialized equipment ensures that the crops are tended to with precision and care, which results in higher yields and better quality produce.
In contrast, unspecialized machines that can be adapted for multiple tasks may not perform as well in horticulture because they lack the precision and efficiency required for these specialized tasks.
So, in horticulture, specialized technology works well because it allows for precise and efficient handling of crops, which ultimately leads to better yields and higher-quality produce.
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A gymnast balancing on a beam will put her arms out. Why does this help?
By keeping their centre of gravity over the beam, a gymnast may balance himself. The gymnast increases their moment of inertia, or resistance to rotational motion, by spreading their arms out to the sides, making it harder to unintentionally tilt or spin. As a result, their body is more stable, aiding in balance maintenance. Moreover, the centre of mass can be slightly adjusted with the arm movements to make up for any minor deviations from the equilibrium position. The gymnast can also orient oneself in relation to the beam using the visual clues provided by the arms. Overall, while balancing on a beam, a gymnast can gain various advantages from extending their arms to the side, including increased stability and many more.
how many elements are pictured a.7 b4 c.3 d2
The number of elements pictured in the above image is 3 (option C).
What are elements?Element are any one of the simplest chemical substances that cannot be decomposed in a chemical reaction or by any chemical means and made up of atoms all having the same number of protons.
There are about 118 chemical elements, each with its own type of atom. Everything in the universe contains the atoms of at least one or more elements. The periodic table lists all the known elements, grouping together those with similar properties.
According to this question, elements are represented by different colours. Each colour represents each element.
The three colours are as follows:
Red Blue BlackThis means that there are three elements in the above image.
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Velocity vs time graph
Time (sec) Displacement (m) Velocity (m/s)
0
0
0
0.5
1.25
5
1
5
10
1.5
11.25
15
How is the velocity related to the time for the given data?
A)
The velocities cannot be determined.
B)
The velocity is decreasing constantly.
The velocity is increasing constantly.
D)
The velocities is a constant throughout.
Answer:
c...........................
Select all the correct answers.
Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells?
Burning fossil fuels contributes to climate change.
Burning fossil fuels takes place inside expensive fuel cells.
Fossil fuels aren’t widely available, but pure hydrogen is.
Fossil fuels are nonrenewable.
The correct answers are Burning fossil fuels contributes to climate change. Fossil fuels are nonrenewable.
Burning fossil fuels releases greenhouse gases, which contribute to climate change. Fossil fuels are also nonrenewable resources, meaning their supply is limited and will eventually run out.
The other two options are incorrect. Burning fossil fuels does not take place inside fuel cells, and while fossil fuels may not be as widely available as hydrogen, the statement that pure hydrogen is widely available is not necessarily true.
These sentences accurately describe the disadvantages of burning fossil fuels instead of using hydrogen fuel cells. Burning fossil fuels releases greenhouse gases, which contribute to climate change, while fossil fuels are also finite resources, making them nonrenewable
The other two sentences are incorrect: Burning fossil fuels does not take place inside fuel cells, and fossil fuels are widely available, whereas the availability of pure hydrogen is more limited.
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Which two measurements are used to determine BMI?
a
Weight and waist size in inches
b
Height and weight
c
How long it takes you to run a mile and your weight
d
How many situps and pushups you can do
The two measurements used to determine BMI are height and weight (option B).
What is the BMI?The body mass index (BMI) is a term that refers to a mathematical ratio that associates the weight and height of an individual, devised by the Belgian statistician Adolphe Quetelet, which is why it is also known as the Quetelet index.
The Body Mass Index takes into account weight and height. However, and despite the fact that it is a widely accepted criterion, it is not exact because it does not take into account other factors such as age, gender, percentage of fat, percentage of muscle mass, among others.
The Body Mass Index is used by doctors to have a reference parameter to assess the body mass status of a patient. From this table it is possible to identify if a person has an ideal weight, overweight or underweight.
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A coin falls off a table and is traveling to the ground. Which claim about the forces acting on the coin must be true?
(Choice A)
There is a net force on the coin.
(Choice B)
There are no forces on the coin.
(Choice C)
There is no net force on the coin.
(Choice D)
There is not enough information.
A coin falls off a table and is traveling to the ground. There is a net force on the coin which is responsible for the motion of the coin. Thus, the correct option is A.
What is Net force?The net force can be defined as is the sum of all the forces which are acting on an object. Net force acting upon an object can accelerate its mass. Some other forces also acts on a body either at rest or motion. The net force is used in a system when there is a significant number of forces acting on the object.
A coin which falls off a table and is still traveling to the ground. Then, it can be concluded that there is a net force which is acting on that coin which is responsible for the motion of the coin.
Therefore, the correct option is A.
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Saturn is 890,700,000 miles from the Sun. What is the distance in meters?
Answer:
1.4936 trillion meters
Explanation:
From an average distance of 886 million miles Saturn is 9.5 astronomical units away from the sun