Two charged objects have a repulsive force of .080 N. if the charge of both of the objects is doubled, then what is the new force?
Answer:
0.32
Explanation: The guy above me said the answer was 4 times the original number. 0.08 times 4 equals 0.32
If the charge of both of the objects is doubled, then the new force would be 0.32 N.
Force between two charged objects
The electrostatic force between two charged objects is determined by using Coulomb's law as follows;
F = kq₁q₂/r²
when the charges are doubled
F₂ = k(2q₁)(2q₂)/r²
F₂ = 4kq₁q₂/r²
F₂ = 4F
F₂ = 4 x 0.08 N
F₂ = 0.32 N
Thus, if the charge of both of the objects is doubled, then the new force would be 0.32 N.
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A circuit is made of 0.4 ohm wire, 150 ohm bulb and a 120ohm rheo stat connected inseries. Determine the total resistance of the resistance of the circuit?
how do paved parking lots and roads with concrete or asphalt affect water flow on the land?
Paved parking lots and roads with concrete or asphalt prevent water infiltration into the ground, causing surface runoff that can lead to floods, pollution, altered water cycles, and erosion.
Explanation:Paved parking lots and roads made with concrete and asphalt greatly affect the water flow on the land, especially during rainfall. This is due to the impermeability of these materials, which prevents the water from infiltrating or seeping into the ground. Instead, the water becomes surface runoff, rapidly moving across the surface and often causing flash floods, especially in urban areas where these paved surfaces are prevalent.
One environmental effect is the potential for increased pollution. As cars travel, oil and gasoline often leak onto these surfaces. Upon rainfall, these substances are picked up by the surface runoff and can pollute the surrounding areas and water bodies.
This surface runoff also alters the natural water cycle and can affect the local vegetation and soil drainage as the natural filtering capacity of the soil is bypassed. Additionally, in sloped areas, the fast moving water can cause erosion and debris or mud flows.
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as the temperature of the water gets colder, the speed of its molecules:
Which statement does NOT explain the concept of the Doppler Effect?
The answer is: As a sound source moves away from a stationary object, the sound waves are compressed, increasing the pitch.
Why?
Do I just have the question wrong I am so confused I thought that as a sound source moved away, the sound waves don't compress decreasing the pitch?
a cup on a table is pushed horizontally with a force of 0.7N. the cup remains at rest. what are all the forces that make up the net force on the cup, and what is the net force on the cup, in newtons
How does Sonar work?i will mark brainliest pls help
1. By passing sound waves through objects
2.by speeding up sound waves in different materials
3. By locating objects in outer space
4.by passing sound waves off of objecta
Match what is seen through a telescope in Column A with the information that is learned from it in Column B. Column A 1. the visible light spectrum emitted by a star : the visible light spectrum emitted by a star 2. the brightness of a star : the brightness of a star 3. the color of a star : the color of a star Column B a. the distance between the star and Earth b. the chemical composition of the star c. the temperature of the star
Answer:
the visible light spectrum emitted by a star → the chemical composition of the star
the brightness of a star → the distance between the star and Earth
the color of a star → the temperature of the star
Explanation: plato :3
What is the period of a wave if the wavelenght is 110m and the speed is 200m/s? 2 s 100s 200,000 s 0.5 s
Answer:
hello im not here to answer the question, sorry.
There is somthin familar about your name Katelyn.
Are you Katelyn.H? from k12, 8th grade? because Im Rukaiya
Explanation:
Wind energy is used to rotate the sails of a windmill. The rotating sails have A) heat energy. B) kinetic energy. C) potential energy. D) electromagnetic energy.
a 63 kg object needs to be lifted 7 in a matter of 5 Seconds approximately how much horsepowers is required to achieve this task
Which organism in the food web above is sometimes a first-level consumer and sometimes a second-level consumer?Explain
The smallmouth bass is the organism in the food web that can be a first-level consumer or a second-level consumer depending on its diet.
Explanation:In the given food web, the organism that is sometimes a first-level consumer and sometimes a second-level consumer is the smallmouth bass.
The smallmouth bass is a first-level consumer when it feeds on the primary consumers, such as crayfish and insects. However, it can also be a second-level consumer when it feeds on other first-level consumers, like the minnows and sunfish.
Therefore, the smallmouth bass can occupy different trophic levels depending on its diet, making it a versatile consumer in the food web.
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Which statement about the free enterprise system is true?
The free enterprise system allows the citizen to own and operate a private business for profit.
The basic principles of a free enterprise system were laid out by Scottish philosopher Adam Smith in an influential book published in 1776: An Inquiry into the Nature and Causes of the Wealth of Nations. The Nobel-prize winning 20th century economist Milton Friedman said of Adam Smith, "The key insight of Adam Smith's Wealth of Nations is misleadingly simple: If an exchange between two parties is voluntary, it will not take place unless both believe they will benefit from it." Smith argued for such voluntary exchanges within a free market system. He labeled the government-manipulated economic system that was prevailing in his day as "mercantilism," a system in which governments specifically authorized some merchants as the official agents of commerce (rather than endorsing free enterprise). The mercantilist system also viewed wealth as though there were a fixed amount of it available in the world, represented by precious metals such as gold and silver, and that nations were in competition over who got more of that fixed amount of world wealth. Smith saw that wealth was something that could be created and increased through voluntary exchange and free enterprise. Smith's ideas formed the basis for what we have come to know as capitalism.
If an object moves in uniform circular motion in a circle of radius R = 1.0 meter, and the object takes 4.0 seconds to complete ten revolutions, calculate the centripetal acceleration.
The centripetal acceleration of the object moving in uniform circular motion with a radius of 1.0 meter and completing 10 revolutions in 4.0 seconds is calculated to be 39.478 m/s²
To calculate the centripetal acceleration of an object in uniform circular motion, you can use the formula ac = v2 / R, where v is the velocity and R is the radius of the circle. In this case, since the object makes 10 revolutions in 4.0 seconds, we find the velocity by first calculating the circumference with C = 2πR, which is 2π meters because R = 1.0 meter. Then, the total distance traveled in one revolution is 2π meters, and in ten revolutions, it is 10 x 2π meters. The speed v is the total distance traveled divided by the time, so v = (10 x 2π) / 4.0 meters per second. Then, square the speed and divide by the radius to find the centripetal acceleration: ac = (10 x 2π / 4.0)2 / 1.0.
After performing the calculations, ac = 39.478 m/s² as the centripetal acceleration of the object.
Which statement about the free enterprise system is true? It allows the citizen to own government property. It exempts the citizen from taxes if that person serves the government. It allows the citizen to share political power with the rest of the population. It allows the citizen to own and operate a private business for profit. It allows the citizen to be part of a one-class system under state control.
The true statement about the free enterprise system is that it allows citizens to own and operate a private business for profit. The correct option is: It allows the citizen to own and operate a private business for profit.
In a free enterprise system, individuals have the liberty to establish their businesses, make independent economic decisions, and compete in the market without excessive government intervention. This economic model fosters entrepreneurship, innovation, and wealth creation, as individuals are motivated to maximize their profits and meet consumer demands. Unlike a one-class system under state control, the free enterprise system promotes economic diversity and opportunities for social mobility. Citizens can engage in private enterprise, contribute to economic growth, and play an essential role in shaping the economy's direction. Therefore, correct option is: It allows the citizen to own and operate a private business for profit.
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Land near the ocean along the coast experience weather that is more moderate than the inland climate. So along the coast you can predict that compared to inland weather it should be during the summer and during the winter
Coastal climates are moderated by the ocean's heat inertia, leading to cooler summers and milder winters compared to inland areas. This is due to water heating and cooling more slowly than land, which stabilizes temperatures year-round.
Explanation:Coastal areas tend to experience more moderate weather compared to inland areas due to the influence of large bodies of water like oceans. The heat inertia of water means it heats and cools much more slowly than land does, resulting in coastal climates that are less variable and more moderate, even in places far north that would otherwise experience extreme temperatures. During the summer, one can expect that coastal areas would be cooler than inland regions because the ocean absorbs and retains heat more slowly. Likewise, winters along the coast are typically milder than those experienced inland because the ocean retains heat from the summer longer, releasing it slowly over time.
Facts such as Norway's coastal areas remaining ice-free through winter despite being within the Arctic region, and Canada's west coast receiving significant precipitation, illustrate how nearby water bodies moderate local climates. Similarly, urban areas in Australia like Sydney, Melbourne, and Adelaide experience moderate Type C climates because they are near the ocean, which tends to stabilize temperatures throughout the year, making them more mild compared to the greater fluctuations found in inland or more extreme latitudinal locations.
Four large grocery food chains sell approximately how much of the nation’s food?
one-fourth
one-half
three-fourths
100 percent
Answer:
one-fourth
Explanation:
In a recent year, over 1 trillion was spent on food in the US, about half of that at grocery stores, and about half for restaurants, food service, and other food outlets. About 250 billion was spent at the four largest grocery chains.
Approximately one-fourth of the nation's food is sold by the four largest grocery chains.
Four large grocery food chains sell approximately three-fourths of the nation’s food
To understand why three-fourths is the correct answer, let's consider the context of the question. The question asks for the approximate percentage of the nation's food sold by four large grocery food chains.
Here are the options provided:
- one-fourth
- one-half
- three-fourths
- 100 percent
Now, let's analyze these options:
- If one-fourth of the nation's food were sold by these chains, it would mean that three-fourths is sold by other, smaller chains or independent stores, which seems unlikely given the market share of large chains.
- If one-half of the nation's food were sold by these chains, it would still imply a significant portion of the market is held by smaller entities, which might be possible but is not the best answer given typical market concentrations.
- If three-fourths of the nation's food were sold by these chains, it would indicate a high level of market consolidation, which is more in line with what we know about the grocery industry in many countries, where a few large chains control a substantial portion of the market.
- If 100 percent of the nation's food were sold by these chains, it would mean there are no other significant sellers of food in the nation, which is highly unlikely.
Given this information, three-fourths is the most accurate approximation of the market share controlled by four large grocery food chains. It reflects the reality that while these chains are dominant, there is still a considerable portion of the market served by other retailers, including smaller chains, independent stores, and specialty markets.
Calculate the potential difference across a 25- resistor if a 0.3-A current is flowing through it. V
Answer:
7.5 V
Explanation:
If the actual frictional force is equal to 1 lb., then how much effort (force) would be required to drag a 90 lb. box up the plane?
A. 10+ lb.
B. 10- lb.
C.9+ lb.
D. 9- lb.
Could you also explain this? I am having a hard time understanding.
Plz help!!!!!
*best answer gets brainliest*
what are some chemical properties of oreos??
why do hurricanes tend to form in warmer climates
three features describe the motion of an object. they are...
A) direction, speed, energy
B) position, direction, and speed
C) energy, position, and direction
D) position, direction and energy
(OSS.01)
Based on the Nebular theory, which of these is a step in the formation of a new planetary system? (1 point)
evaporation of water
nuclear fission of gases
repulsion of gaseous masses
change of gases into liquids
2. (OSS.01)
A student explains the Nebular theory of formation of planets as follows.
"A cloud of gas and dust in space, called nebula, began to rotate and condensed into a flattened disk. Gravitational force pulled the gas and dust closer together. This resulted in the nuclear fusion of gases and dust to create the sun and planets at the outer flattened portion of the disk."
What is the flaw in the student's explanation? (1 point)
nuclear fission created the sun and planets
the nebula evaporated instead of condensing
the sun was formed at the center of the nebula
gravitational forces kept the gases well separated
3. (OSS.01)
The diagr
The answer is the evaporation of water. As the gas begins to collapse, thermonuclear fusion as a result of the immense gravity at the center of the cloud results in the generation of immense heat and radiation that turns solids and liquid into gaseous form, close to the center of the cloud.
There is a flaw in the statement “This resulted in the nuclear fusion of gases and dust to create the sun and planets at the outer flattened portion of the disk." The sun forms in the center of the cloud since the gravitation effect that drives thermonuclear fusion are strongest in this region. Planets form in the outer regions of the accretion disks where matter attract each other into clumps and gain even more gravitational pull to yank even more matter.
The Nebular theory of planetary system formation does not involve the evaporation of water, nuclear fission of gases, repulsion of gaseous masses, or the change of gases into liquids.
Explanation:The steps involved in the formation of a new planetary system according to the Nebular theory include:
Evaporation of water: This step is not part of the Nebular theory. The theory focuses on the formation of planets from a cloud of gas and dust in space. Water evaporation is not mentioned in this process.Nuclear fission of gases: Nuclear fusion, not fission, is the process that occurs in the core of the Sun, leading to the release of energy. Fusion involves the merging of atomic nuclei, not the splitting of them.Repulsion of gaseous masses: This is not a step in the formation of a new planetary system according to the Nebular theory. Instead, gravitational force acting on the cloud of gas and dust causes them to condense and come closer together.Change of gases into liquids: The Nebular theory explains the formation of planets from gas and dust, not the change of gases into liquids. The condensation of gas and dust leads to the formation of solid bodies like planets.Learn more about Nebular theory of planetary system formation here:https://brainly.com/question/1477348
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Circular motion occurs only at or near earths surface true or false
Answer:
FALSE
Explanation:
Circular motion refers to the motion of an object in a circular path. This occurs at or near the surface of the earth as well as outside the earth in the space. This can be supported by the following pieces of evidence-
(1) The moon and the other artificial satellites that are moving constantly around the earth in a circular path.
(2) The planets going around the sun forming the solar system also maintains a circular and elliptical plane.
(3) Tying a stone with a rope and swinging it in circles maintaining a constant velocity also satisfies the condition of circular motion at or near the surface of the earth.
Thus, the above-given statement is false.
the force of the racket and the opposite force of the tennis ball do not cancel each other out. why?
25 POINTS FOR CORRECT ANSWER
Stefan is writing a report about the law of reflection. In his report, he says that the angle of incidence is the angle between the surface of the mirror and the incoming ray. Do you agree with him? Why or why not?
The angle of incidence is the angle formed between the incident ray and its normal drawn on the plane. So, his statement is wrong.
What is law of reflection ?Law of reflection states that, when a light ray falls on a reflecting surface and gets reflected, the angle of incidence becomes equal to the angle of reflection.
Here,
The report given by Stefan is about the law of reflection. In the report, he says that the angle of incidence is the angle between the surface of the mirror and the incoming ray.
This not correct and I disagree with his statement because,
The angle of incidence in optics is defined as the angle formed between the incident ray on the surface and the normal drawn at the point of incidence at the surface of the mirror.
The formation of angle of incidence is given in the figure.
Hence,
The angle of incidence is the angle formed between the incident ray and its normal drawn on the plane. So, his statement is wrong.
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Attaching the image here.
The Invariable wave property in the Doppler effect is the
The answer to you qustion is velocity
-got 95%
Tracy pattern block divided into two equal parts and write a unit fraction to describe the area of each part explain your work
High tide are experienced 12 hours apart for a certain coastline. Which of the following best explains the reason for this phenomenon?
The coastline experiences tidal bulge twice a day.
The coastline experiences tidal bulge once a day.
The coastline comes in a straight line with the moon once.
The coastline becomes 90 degress with the moon twice.
The answer is The coastline experiences tidal bulge twice a day. This occurs due to the rotation of the earth. When the sun is either on the same side as the moon or opposite side of the moon relative to the earth (which happens twice a day), then the coastline will experience high tide on these two occasions. Tides are caused by gravitational effect on water masses on the earth that cause them to bulge towards the direction of the two celestial bodies.
Answer:
The coastline experiences tidal bulge twice a day
Explanation: