Physics Middle School

This Is Chemistry Question, My Laptop Got Lag When I was Posting It :( Explain The Rutherford Atomic Model
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This Is Chemistry Question, My Laptop Got Lag When I Was Posting It :( Explain The Rutherford Atomic

Answers

Answer 1

Explanation:

that’s hard

Answer 2

Answer:

Rutherford conducted an experiment (α-particles scattering) in order to find the arrangement of electrons and protons in an atom. This experiment led to the discovery of nucleus in an atom.

Explanation:

Rutherford bombarded a thin gold foil (about 0.00004 cm thick) with alpha particles in an evacuated chamber. These particles got scattered and were allowed to to strike on a circular zinc sulphide coated screen. He observed a flash of light on the screen where the alpha particles struck. From this experiment, he made the following conclusions.

Observation 1: Most alpha particles (α-particles) pass straight through the gold foil without any deflection from their original paths.

Conclusion: There is a lot of empty space in the atom.

Observation 2: A few alpha particles were deflected, at small angles and a few at large angles.

Conclusion: There is a small positively charged object at the centre of the atom. He said this because as alpha rays are positively charged it can pass through only negatively charged particles and get deflected by the same charge. He concluded that the small positively charged object present within the atom is called the nucleus.

Observation 3: Very few alpha particles completely rebounded on hitting the gold foil.

Conclusion: The nucleus is dense and hard. It is located at the centre of the atom.

(Refer the picture given in the question)

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Related Questions

why a paperclip does NOT float?

Answers

Because of Surface tension

Answer: the tention of the water since the object is light the water particles can rise it so it's not entilely floating

Explanation: flat line:_____________________________

To reduce friction on an aircraft, the surfaces (skin) are ? and the body is ?
.

(possible answers below)

Answers

Answer:

Surface (skin) should be smooth and body should be streamlined shaped.

Surface : Smooth
Body : Streamlined

1. Suppose a lawyer can type faster than any secretary. Should the lawyer do her own typing?

Answers

Answer:

Yes, the lawyer should do her own typing

Explanation:

If a lawyer types faster than a secretary, it's obvious the lawyet should do her own typing.

The velocity of the rocket is not the same as the speed of the rocket. What is the difference between the velocity of an object and the speed of an object

Answers

The difference between the velocity of an object and the speed of an object is that the velocity represents both the magnitude and direction, and speed represents only the magnitude.

What is velocity?

Velocity is the time rate of change of displacement.

Speed is the ratio of distance and the time taken to travel that distance.

Thus, the difference between the velocity of an object and the speed of an object is that the velocity represents both the magnitude and direction, and speed represents only the magnitude.

Learn more about velocity.

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Velocity is a vector quantity or it has direction but speed is scalar quantity or it doesn’t has direction

In your own words, define the following terms.
2. climate___________.

Answers

Answer:

The state of a certain type of land or a biome.

Climate is the weather of a certain area

1. This morning you pulled on your Levi's jeans from Mexico, pulled over your Benetton sweater from Italy, and laced up your Timberland boots from Thailand. After a breakfast that included baNNs from Honduras and coffee from Brazil, you climbed into your Volvo from Sweden fueled by Venezuelan oil and headed for a lecture by a visiting professor from Hungary. If the United States is such a rich and productive country, why do we import so many goods and services?

Answers

Answer:

because some things are just made better in different countries each country specialises in its own items they're better quality

What is the speed of light?

Answers

Answer:

299792458 meters per second (approximately 300000 km/s or 186000 mi/s)

Explanation:

The speed of light in vacuum, commonly denoted c, is a universal physical constant that is important in many areas of physics. Its exact value is defined as 299792458 meters per second (approximately 300000 km/s or 186000 mi/s).[Note 3] According to the special theory of relativity, c is the upper limit for the speed at which conventional matter, energy or any signal carrying information can travel through space.

Answer:

The speed of light in vacuum, commonly denoted c, is a universal physical constant that is important in many areas of physics. Its exact value is defined as 299792458 metres per second (approximately 300000 km/s or 186000 mi/s). According to the special theory of relativity,

Explanation:

is what i know

Can someone answer this question

Answers

Answer:

The correct answer is C

Explanation:

carbon dioxide, water vapor, and nitrogen make up the largest percentage of earth's atmosphere

Answer C

Explanation:
Nitrogen is the most abundant gas on the atmosphere which fills 71% of the atmosphere and oxygen has 21% and it leaves 1% of the atmosphere. That is filled most by carbon dioxide and water vapor

2. Why don't we produce everything ourselves?

Answers

because we haven't learn wverything

Because we don’t have all the resources needed to produce certain items, and importing/exporting can help our economy

1. Why is agricultural productivity in developing countries usually so low?

Answers

Answer:

they are less able to benefit from the economies of larger scale production.

Explanation:

Education levels are also much lower in developing economies, and child labor is more common.

they are less able to benefit from the economies of larger scale production.

I need to Label the seasons in the Northern and Southern hemisphere at each location. I need answers and don’t understand this Please help. (Middle school science btw)

Answers

See attached image for answers

Pls mark branliest!

The sides that’s are tilted to the sun are experiencing summer and away winter

2. What determines the wealth of Ntions?

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Answer: The GDP of a state tells us the wealth of a Nation

Explanation: A GDP is a comprehensive measure of U.S. economic activity. GDP measures the value of the final goods and services produced in the United States

The answer would be GDP :)

2. How has the growth of Earth's human population changed in recent decades? In your answer, discuss growth rate and the number of people added each year.

Answers

Humans population had dropped by half since the 1960s from 2.2% in 1962 to 1.15% today

6. Should we be worried about our trade deficit? Explain why or why not.

Answers

Answer:

A trade deficit is neither inherently entirely good or bad, although very large deficits can negatively impact the economy. A trade deficit can be a sign of a strong economy and, under certain conditions, can lead to stronger economic growth for the deficit-running country in the future.

Explanation:

The most obvious benefit of a trade deficit is that it allows a country to consume more than it produces. In the short run, trade deficits can help nations to avoid shortages of goods and other economic problems. In some countries, trade deficits correct themselves over time.

i need help with this plsssss

Answers

Answer:

Increased ; Decreased

Explanation:

Force = Mass x Acceleration

If I increase my mass (by putting in books in the box) shouln't my acceleration go down since they are inversely related to each other (when one goes up, the other goes down and vice versa). My force stayed the same at 10 N, thus only mass and acceleration fluctuated relative to each other.

Increased , decreased.

Which organic compound forms much of the structure of cells?
A. Carbohydrates
B. Nucleic acids
C. Lipids or
D. Proteins

Answers

Which organic compound forms much of the structure of cells?

Answer: A Carbohydrates

the organic compound is nucliec acids

1. Why are some countries so poor while others are so rich?

Answers

Answer:

It depends on how much resources a country has.

Depending on how much natural resources a country have will determine the wealth or poverty of the country. The leader or leaders of a country could also determine if a country is wealthy or in poverty.

4. What would you suggest we do to reduce our trade deficit?

Answers

Answer:

Increase economic growth and condition.

Reducing the exchange rate (devaluation or depreciation) Reducing the value of the exchange rate can help to reduce a trade deficit.

3. Why do families in low-income countries have more children than those in higher-income countries?

Answers

Answer:

Sometimes the more family members you have, more money can be brought in.

I think it’s because first of all families with low income may not be fully educated and not civilized second of all poor families have more children so their income and their outcome may not be equal sometimes the outcome may even be more than the income

Alexis and Jeremy are planning their weight training workout program together. Jeremy shows that he places a high importance on following correct safety procedures when weight training because he performs exercises: Group of answer choices

using low reps with maximum weights
with correct technique
from smallest muscle group to largest group
as quickly as possible​

Answers

Answer:

A:using low reps with maximum weights

Explanation:

Answer:

A

Explanation:

Which questions should you try to answer in an investigation of force when using a basketball? Select the two correct answers.(1 point)


Which forces are acting on the basketball when it is stationary, and are they balanced?


Which forces are acting on the basketball when someone shoots it, and are they balanced?


How tall is the person shooting the basketball?

Where is the person standing in relation to the court?

Answers

Answer:

gravitational force

Explanation:

no force act upon a stationary object.

for a force will remain in its position of unchanged until an external force/ load is been applied.

(2) a force acting upon a basketball when shoots it:

i. when a basketball was shoots, upon a point the body will momentarily stopped and gravitational force acted upon it by deviating downward act a target spot thrown to.

ii. the height of a person is independent of shooting basketball

III. the person shooting the basketball will face toward directing the court.

FASTTT FOR BRAINLIST
Mrs. Smitherman’s lab has a sample of a radioactive potassium isotope with a half-life of one week.
How much of the original sample would be left in the lab at the end of the third week?
A 1/8
B 1/4
C 1/2
D 1

Answers

the answer should be A?
A at the end of three weeks there will be 1/8 left

Can someone answer this

Answers

It’s d because earths weather is particularly caused by the changing distance between the earth and sun.

Vocabulary
Draw a line that matches the term with the correct definition.
3. severe weather
A. a huge mass of ocean water that floods the shore
B. a storm with lightning and thunder
C. a violently rotating column of air stretching to the ground
D. weather that can potentially destroy property or cause loss of life
E. a tropical low-pressure system with winds of 119 km/h or more

Answers

Answer:

C. a violently rotating column of air stretching to the ground

Explanation:

C. a violently rotating column of air stretching to the ground

i'll give the first person to answer a brainly

Answers

Answer:

Option b

Hope it helps...

Your answer is letter b because I have no idea what

4. Why have abundant Ntural resources such as oil or diamonds turned out to be a curse for some countries?

Answers

Answer:

the prospect of resource rents may be an incentive to rebel or secedeor for a simple version an abundance of natural resources can lead to corruption and stagnation, or even economic contraction

Explanation:

6. What is a maNged float? What are the disadvantages of freely floating exchange rates that led countries to the maNged float system?

Answers

Answer:

Terms in this set (7)

1. Compare and contrast the fixed, freely floating, and managed float exchangerate systems. What are some advantages and disadvantages of a freely floating exchange rate system versus a fixed exchange rate system?

Under a fixed exchange rate system, the governments attempted to maintain exchange rates within 1% of the initi¬ally set value (slightly widening the bands in 1971). Under a freely floating system, government intervention would be non existent. Under a managed float system, governments will allow exchange rates move according to market forces; however, they will intervene when they believe it is necessary.

A freely floating system may help correct balance-of-trade deficits since the currency will adjust according to market forces. Also, countries are more insulated from problems of foreign countries under a freely floating exchange rate system. However, a disadvantage of freely floating exchange rates is that firms have to manage their exposure to exchange rate risk. Also, floating rates still can often have a significant adverse impact on a country's unemployment or inflation.

Explanation:

your welcome

3 ways how natural disasters impact environment.

Answers

1. When sewage treatment plants flood or debris reaches reservoirs and streams, the quality of the water is affected.

2. Storm surges cause beaches to shift and alter shape.

3. During flash floods, riverbanks erode.
Here’s my simple answer:

1.Buildings collapse
2.toxic gases release into the environment
3.disease

3. How can the U.S. economy grow if we import more goods and services?

Answers

The U.S. economy grow via trade deficit,  if we import more goods and services.

What is import and export?

When any good or service is  brought in from one country to another is called Import while exports are when goods and services produced in the home country for sale to other countries.

If a country imports more than it exports, it runs a trade deficit. If it imports less than it exports, that creates a trade surplus. When a country has a trade deficit, it must borrow from other countries to pay for the extra imports.

Thus, the U.S. economy grow via trade deficit,  if we import more goods and services.

Learn more about import and export

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Answer:

they need are help so they can make money and get help right away

Explanation:

6. What are the arguments for using real per capita GNI to compare living standards between countries? What weakness does this measure have?

Answers

Answer:

Levels of real per capita GDP are often cited to indicate living standards are higher in one country than another, and, by implication, that some systems of government or sets of government policies are better than others, but this measure of comparative living standards is so flawed as to be practically useless.

Explanation:

Other Questions
Please help me with these. Just do number 2 please.? SOmeone please help me with this math puzzle The organization of a organism from smallest to largest is Cell, tissue, organ, organ system, organism True False In two or three well-developed paragraphs, explain how pollution can come from both natural sources and from human activities. Provide examples of each. if you are standing at the cup cake table in which direction must you walk to find the swings Mohan said to me. I am very will. (indirect spech) Why is policing important? I have a 50 in history please help (usatestprep grade recovery) as the civil war came to an end in ________, president ________ wanted to see the country heal quickly from the four years of fighting. his proposal to bring the south back into the country became known as " ________ reconstruction." he wanted all former confederate states to be admitted back into the union after __% of the population promised loyalty to the united states. also, the states would have to agree to abolish ________. however, he did not live to see that happen. instead, reconstruction was controlled by congress. their plan was known as "congressional reconstruction," but sometimes it is referred to as "________reconstruction." politicians such as ________ and charles sumner wanted to punish the south for starting the war. though they required states to pass amendments 13th, 14th, and __th, they also place the south under military rule. southern states were also required to end all "________", laws that denied basic rights to former slaves. reconstruction would end in, ____ but the wounds of the previous years would be a long time to heal. word bank: radical, abraham lincoln, 10, 15, 1865, 1877, black codes, presedential, thaddeus stevens, slavery What should be considered when trying to discover the theme of a piece of literature?the main characters growth, behavior, and motivations the values illustrated by characters and events of the storythe effect of the piece on the readerall of these Rewrite each sentence, adding the correct form of the adjective in parentheses. Make any other necessary changes. Remember where these adjectives go in the sentence! Les journaux sont sur la chaise. (vieux) (the chair is old!) Find (a) arc length and (b) Area of a sector. A bag contains 5 pictures of Paris and 7 pictures of London. Determine whether the events of selecting the picture of Paris and another picture of Paris with replacement are independent or dependent. Then identify the indicated probability. your and friend got 20 frog and your friend caught 5 times more? how many did ur friend catch please explain Q1: the aerobic system isA-more powerful and lasts longerB- less powerful and lasts longer C- more powerful and wears out quicklyD- less powerful and wears out quicklyQ2: the anaerobic system isA-more powerful and lasts longerB- less powerful and lasts longerC- more powerful but wears out quicklyD- less powerful but wears out quicklyQ3: profession isA- the training load expressed as resistance, speed or heart rate B- the number of exercise session per weekC- exercise training specific to the muscles used and the component of fitness trainerD- a gradual increase in one or more of the FITT variables to create an overloadQ4: Nathan wants to know the amount of each macronutrient in his yogurt. He also wants to know how many calories that yoga contains. What is a reliable and fast source to get this informationA-nutrition labelB-diet websites C- a friendD-a doctorQ5- matthews goal is to improve the muscular strength in his legs. Which of the following exercises will help him achieve his goal?A-calf stretchB-squatsC-hurdlers stretchD- bench press harriet took 48 minutes to ride her bike the distance from her house to the town library. if she rode at a constant rate, what fraction of the total distance did she ride in the first 12 min Identify the complete adjective clause.Take this letter that I have written to the post office.this letterTake this letterwritten to the post officethis letter that I have writtenthat I have writtento the post officeI have written Which graph below shows the solutions for the linear inequality y2-x+1? A quadrilateral has diagonals which are perpendicular to one another. What is the most we can determine about what kind of quadrilateral this is? Which from the list is the first step in protein synthesis? A) The initiator codon binds to the first transfer RNAB) Two ribosome bind subunits bind to messenger RNAC) Amino acids produced bonds to form a polypeptide chainD) The anti-codon of another transfer RNA binds to messenger RNA Read the poem.Lady Freedom Among Usby Rita Dove(1) don't lower your eyesor stare straight ahead to whereyou think you ought to be going(2) don't mutter oh nonot another oneget a job fly a kitego bury a bone(3) with her oldfashioned sandalswith her leaden skirtswith her stained cheeks and whiskers and heaped up trinketsshe has risen among us in blunt reproach(4) she has fitted her hair under a hand-me-down capand spruced it up with feathers and starsslung over her shoulder she bearsthe rainbowed layers of charity and murmursall of you even the least of you(5) don't cross to the other side of the squaredon't think another item to fit on a tourist's agenda(6) consider her drenched gaze her shining browshe who has brought mercy back into the streetand will not retire politely to the potter's field(7) having assumed the thick skin of this townits gritted exhaust its sunscorch and blearshe rests in her weathered plumagebigboned resolute(8) don't think you can forget herdon't even tryshe's not going to budge(9) no choice but to grant her spacecrown her with skyfor she is one of the manyand she is each of usIn Lady Freedom Among Us Dove wants readers to recognize that people experiencing homelessness in America are no different than homed citizens.Which TWO stanzas work together to develop this overall message?Select 2 correct answer(s)Stanza 4Stanza 2Stanza 8Stanza 6