Answer:
Humans only recently (like in the last 300 years) realized what Gravity is all about. Greek philosophers thought that the planets and stars were part of the gods' realm and followed a "natural motion." They did not realize that Gravity is involved. The Greeks' ideas stuck around until the 16th century. Beginning in the 1500s, though, astronomers like Galileo and Brahe discovered that the earth and other planets revolved around the sun. Kepler showed that they moved in an eliptical orbit, not a circle. The question was why. Sir Isaac Newton -- The Discoverer of Gravity! Sir Isaac Newton was an English mathematician and mathematician and physicist who lived from 1642-1727. The legend is that Newton discovered Gravity when he saw a falling apple while thinking about the forces of nature. Whatever really happened, Newton realized that some force must be acting on falling objects like apples because otherwise they would not start moving from rest. Newton also realized that the moon would fly off away from Earth in a straight line tangent to its orbit if some force was not causing it to fall toward the Earth. The moon is only a projectile circling around the Earth under the attraction of Gravity. Newton called this force "gravity" and determined that gravitational forces exist between all objects. Using the idea of Gravity, Newton was able to explain the astronomical observations of Kepler. The work of Galileo, Brahe, Kepler, and Newton proved once and for all that the Earth wasn't the center of the solar system. The Earth, along with all other planets,orbits around the sun. Two astronomers, J.C. Adams and U.J.J. LeVerrier, later used the concept of Gravity to predict that the planet Neptune would be discovered. They realized that there must be another planet exerting a gravitational force on Uranus because Uranus had odd perturbations in its orbit. (Perturbations are deviations in orbits.) Albert Einstein -- The General Theory of Relativity Einstein developed a whole new idea about Gravity. According to Einstein, Gravity arises from the "warping" of space and time. Einstein's new theory of Gravity explains a number of phenomena that would violate Newton's theory. For example, light bends when passing near massive objects like the Sun. And a clock raised above the Earth speeds up relative to a clock on the surface. Gravity is a force of attraction that exists between any two objects. There is a force of gravity between the sun and the Earth, between the Earth and us, and even between two marbles. Projectiles, satellites, planets, galaxies, and clusters of galaxies are all influenced by Gravity. Gravity is the weakest of the four known forces of nature, yet the most dominant force. Even though it's the weakest force, Gravity holds together entire solar systems and galaxies! The law of universal gravitation says that every object attracts every other object with a force that, for any two objects, is directly proportional to the mass of each object and inversely proportional to the square of the distance between the two objects. The gravitational formula is This is an example of the "inverse-square law": gravitational force varies as the inverse square of the distance between the two objects. As a result, the effect of Gravity falls rapidly as the distance increases between two objects. The best current estimate of G is that it eqauls about 6.67259 10-11 newton-square meter per square kilogram. The gravitational field for a planet, g, equals GM/Rsquared, where G is the mass of the planet and R is the distance of the object from the center of the planet (the planet's radius if the object is on the surface of the planet). This means that Gravity is greater where a planet is more massive and where it has a smaller radius. So even though Mars has only about 1/10th of the mass of the Earth, the gravitational force on the surface of Mars is more than 1/10th that on the surface of the Earth -- because Mars' surface is closer to the planet's surface! The force of attraction between you and the Earth is your weight. Gravity determines the "escape speed" for an object like a rocket. The stronger the gravitational pull of the object, the larger the escape speed. The following chart shows the escape speed for the sun, two planets, and the Earth's moon.
Sun 620 km/s
Jupiter 60.2 km/s
Earth 11.2 km/s
Moon 2.4 km/s
In the Preamble to the U.S. Constitution, what is the meaning of the phrase "We
the People"?
A. The people express their will through political parties.
B. The people express their will by directly creating laws
C. The government received taxes from the people and exists to support them.
D. Government receives its power from the people and exists to serve them.
Answer:
d
Explanation:
without the people their is no government to control, the governemnt is here to protects and sever us
Does North Korea and South Korea have the same timezone
Answer:
yes
Explanation:
Answer:
On Aug. 15, 2015, North Koreans put their clocks back half an hour to establish their own time zone. Less than three years later, the country put their clocks forward half an hour so they are again in the same time zone as South Korea.
Explanation:
so yes, yes they do
food availability goea with season true or false
Answer: True!!!
Explanation:
How does the law of superposition help us determine the age of the Earth
Answer:
The law of superposition states that each rock layer is older than the one above it. So, the relative age of the rock or fossil in the rock or fossil in the rock is older if it is farther down in the rock layers. Relative dating can be used only when the rock layers have been preserved in their original sequence.
These actions listed below are examples of the President of the United States' role as (complete this sentence with A, B, C, or D)
{Inspecting an Army base and observing a training exercise}
{Deploying troops to protect an American embassy overseas}
{Authorizing the use of military force against an enemy nation}
!no links, the administrator will delete your user and "answer" that is the link... i dont want anyone getting hac-ked by stu-pid hac-kers sending out the same link to the same site that has a fire-wall brea-ker!
A) foreign policy leader.
B) chief of state.
C) party leader.
D) commander-in-chief.
!THIS QUESTION IS AN USATESTPREP QUESTION SO ANSWER TODAY!
Ω Entity001 And Project Omega Ω
Explanation: if you are talking about true then it is a
if your talking about false it is b
Which of the following is MOST negatively affected by a low national literacy rate?
A. trade with other nations
B. economic development
C. access to resources
D. territorial expansion
Answer:i don’t know
but it might be b or c
Explanation:
Answer:
B
Explanation:
This is since with higher literacy rates you can have more skills for better development and in this case it is the opposite.
Write a 100-word positive editorial on bringing the Olympics to Atlanta and the changes needed for the city.
Write a second 100-word essay looking back at all the things that happened to and for
Atlanta as a result of the Olympics.
In the second essay, give your opinion on whether the Olympics were good or bad for Atlanta.
Answer:Bringing the 1996 Summer Olympic Games to Atlanta was a long shot. Athens, Greece, was the sentimental favorite to host the centennial games, and tension was palpable as IOC President Juan Antonio Samaranch made the announcement back on Sept. 18, 1990.
"The International Olympic Committee has awarded the 1996 Olympic Games to the city of ... Atlanta," Samaranch revealed.
That announcement launched more than $1 billion of construction projects, from Olympic venues to housing for the athletes. Now, on the 15th anniversary of the games, Atlanta sees both gains and losses from the international event.
Explanation:
how courtship in 1990s differs from dating today?
Answer: today you are able to swipe left or right
Explanation:
Describe the accomplishments in the arts, philosophy, and literature during the Ming dynasty
Answer:
The Ming Dynasty
Explanation:
China in the 14th century to 17th century ruled by the Ming Dynasty. During their reign, China became the largest economy in the world. The Ming Dynasty remembered for its literature, art, drama, and porcelain.
Ming publishers began to publish works of novels along with short stories. Novels like Journey to the West written during this period. The books were available to the high social group. The Ming dynasty was known for its literature and plays.
Answer:
The arts created things and turn into something, so they created more, and it became big. The philosophy was an achievement because it was ruling china and took over it. They made the great wall of china and that’s were it started and all the voyages and creations.Explanation:
Hope this helps!
Have a great day
What are the reasons for and consequences of fascism in Europe in the 1930s?
Answer:
Explanation:Britain: Oswald Mosley's fascist movement was significant in the late 1920s and 1930s. ... attack on liberalism, faith in science and reason; reassertion of individualism based ... but overturning the consequences of the great migrations of the early middle ages:
What is the leading factor to a producer's ability to specialize?
the research about a product
the advertising of a product
the supply of a product
the demand for a product
Answer:
The correct answer is C
Explanation:
by his death.
4. Christianity teaches that believers will experience
Heaven or Hell, Jesus, God
Explanation:
something like that..?
In times of need. the military can increase the production of raw materials.
True
False
What do sedimentary rocks usually become before melting to become magma
Answer:
well sedimentary rocks can turn into metamorphic or igneous rocks.
Explanation:
igneous rocks form when the magma cools down and makes crystals.
Which action would MOST LIKELY make Cuba's economic system more like Mexico's? A. Decreasing personal income tax rates B. Increasing per capita income by not allowing a free market C. Decreasing government involvement in major businesses D. Increasing incentives (motivation) to trade
The correct answer is C) Decreasing government involvement in major businesses.
The action that would MOST LIKELY make Cuba's economic system more like Mexico's is "decreasing government involvement in major businesses."
Cuba is the only country in the world with Venezuela, which still reminds a Communist economy in which the government owns most of the companies and there is no private business. The State in Cuba dictates what to produce when to produce, where to produce, the number of products to produce., and the price of the products. Like a command economy.
If Cuba would like to have an economic system more like Mexico's, it has to sell many industries that today are owned by the government. Privatization of the industry is what Mexico did in 1988 when Carlos Salinas de Gortari became the President of México.
On June 20, 1789, where did the French National Assembly meet to draw
up a French Constitution? *
McDonald's
Indoor Tennis Court
Plymouth, Massachusetts
The Eiffel Tower
The poster below was produced during World War II: A poster shows an illustration of a man, woman, and young girl, all with determined looks. The man holds a flashlight and the woman holds a rake. The headline on the poster reads Service on the Home Front. Beneath the headline are five stars followed by Citizen Defense Corps, Citizen Service Corps, American Unity, Salvage Program, Victory Gardens. At the bottom of the poster, the text reads, There is a job for every Pennsylvanian is these Civilian Defense Efforts. Pennsylvania State Council of Defense Capitol Building Harrisburg, Penna. Public Domain Why were posters of this kind produced during the war 1) to generate public support for the war effort 2) to demonstrate that victory was close at hand 3) to show the troops that the public valued their sacrifices 4) to entertain people during a difficult time for the nation
To generate public support for the war.
Explanation:
Posters of this kind were produced during the war to generate public support for the war effort. Thus the correct option is A.
What is a poster?A poster is refer to a graphical or pictorial representation of any idea to promote or support something. These posters are utilized for advertisement or to create awareness among citizens regarding any issue or challenges faced in society.
More posters were made during World War II, while they were no longer the main informational tool. During the conflict, posters played a significant role in the widespread distribution of information.
The governments of the US and UK sponsored the printing of innumerable posters during World War Two to aid in the war effort. Many were just plain advertising meant to increase public support for the War.
Therefore, option A is appropriate.
Learn more about Posters, here:
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Box 1 has more mass than Box 2.
If a corporation goes out of business, the company’s stock __________. A. no longer has any value B. is redeemable for its original value C. can be transferred to another company D. gains in value since company assets are liquidated
Answer:
A
Explanation:
Answer:
A.
no longer has any value
Explanation:
The political cartoon above best represents which event in African history?
Answer:
C. The Berlin Conference held in Germany
Explanation:
In the context of the Industrial Revolution, which was in full steam in Europe during the end of the 19th century, commodity and natural resource-rich Africa started to draw more and more of the world’s attention.
In the late 1800s, representatives from fourteen countries met in Berlin to discuss how to divvy up their competing claims on Africa and its resources. Motivated by their desire to avoid a power struggle amongst themselves, representatives at the Berlin Conference drew colonial boundaries in Africa and decided matters ranging from trade rights to control over major rivers without a single African representative present.
Although many Africans resisted the ensuing colonization of their region, Europeans moved quickly to exploit existing political divisions among the region’s kingdoms and leveraged a distinct advantage: guns. By 1914, European powers controlled almost 90 percent of the continent.
Hope this helps! :)
Stay Cold,
Brook
Why can't a starch molecule enter a cell right after a person eats a meal with starchy foods in it?
Answer:
It would need to be broken down first due to its size, it wouldn't fit
Explanation:
A starch molecule is too big and it must be broken down before going through to the digestive system
Which constitutional amendment expanded the right to vote?
O A. Twenty-Second
OB. Twenty-Fifth
O C. Twenty-Third
O D. Twenty-Fourth
SUBNET
South Sudan, Ethiopia and Cote Devour were among Africa's fastest growing economies in the past few decades posting remarkable economics growth rates. However, a substantial number of people in these countries still live in absolute poverty due to high levels of inequalities. Discuss why this is the case for developing countries.
Answer: The major issues most times is that policies for strategic growth are not well planned to favour the masses instantly and might probably take some years to get everyone enjoying them. But we know that having a sustained economy over a long time is a big task, so the larger population may not enjoy most short progress made until it's over time and rubs off on every other sector
Explanation:
Most developing countries especially Africa, have the issue of development and it not rubbing off on the larger population. Some countries would be in recession and it will later be announced that recession is called off but there won't be much difference when you asked the masses about it's influence. Developing countries have it's wealth enjoyed most times by a lesser population when developing. An example would be some person's involved in food production, and the market favours them but they still awake their product expensive for the larger population to acquire. The major issues most times is that policies for strategic growth are not well planned to favour the masses instantly and might probably take some years to get everyone enjoying them. But we know that having a sustained economy over a long time is a big task, so the larger population may not enjoy most short progress made until it's over time and rubs off on every other sector
True or false: A right turn is permitted at a red light unless other restrictions are posted.
Answer:
it depends on the state or country laws
in washington state it is true
Explanation:
Which of the following statements best describes how Europeans have changed the land?
A. They have built underground waste facilities. B. They have used the land to grow resources. C. They have planted trees to produce forests. D. They have given land back to the sea.
I will mark brainlest if correct!♡
Answer:
A
Explanation:
hope it helps........
Answer:
a
Explanation:
Which two European countries still had influence in the region
Answer:
Explanation:kevious
Which of these is a power that the President of the United States can exercise?.
Answer:
The Constitution explicitly assigns the president the power to sign or veto legislation, command the armed forces, ask for the written opinion of their Cabinet, convene or adjourn Congress, grant reprieves and pardons, and receive ambassadors.
¿Hoy día cuáles son esos aportes que nos hicieron los Romanos con los que actualmente aun contamos? Doy corazón y estrella
Answer:
The Romans' contributions to modern-day society include:
Democracy (Voting, Congress, etc.)Cement (The very first cement was made with volcanic ash)Military strategiesExplanation:
Those were all I could think of off the top of my head. Hope they'll help!
Challenges of Political Parties
Answer:
The various challenges faced by political parties are:
Lack of Internal democracy:
• Every member of the party does not have a chance to take part in the decision-making process.
• Every member is not consulted before taking a decision.
• There is no proper organisation or registration of members.
• Power remains in the hands of a few top leaders, who do not consult ordinary members.
• Ordinary members have no information about the internal working of the party.
Dynastic Succession: With power in the hands of a few top leaders, all party positions go to their family members. These members may not be qualified or have the ability to hold their positions.
Money and Muscle Power:
• Money is needed to organise demonstrations, public meetings, and speeches to publicise the image of the party. Parties choose those candidates who can raise money for the party and win elections with their money.
• Sometimes parties also support criminals candidates because they can win elections.
The meaningful choice to others: Most of the political parties have the same fundamental and ideological issues. Voters do not have a meaningful choice. Even leaders keep changing parties, thus confusing the voter.
Explanation:
The election results of 1860 most clearly illustrate the concept of- A) republicanism B) federalism C) nullification D) sectionalism
Answer: D. Sectionalism
Explanation:
The Presidential Election of 1960 was the election that first brought President Abraham Lincoln to power. He won the Northern part of the country under the banner of the Republican party while the Southern part of the country was won by the Democratic party.
This showed sectionalism because these two parts of the country were embroiled in a long term dispute over slavery and so they picked candidates and parties that would support their stance on slavery with the North opposing slavery and the South supporting it.