Astronauts appear weightless in space not because there is no gravity, but because they are in continuous free-fall in orbit around Earth. They and their spacecraft are falling at the same rate, which creates the sensation of weightlessness since there is no relative acceleration between them and the craft.
Explanation:Understanding Apparent Weightlessness in Orbit::
Astronauts inside a spacecraft like the Space Shuttle or the International Space Station appear to be weightless, not because gravity is absent, but due to the fact that they are in a state of free-fall within Earth's gravity. Just like the spacecraft, astronauts are continually falling towards Earth, but because of their forward motion, they fall around it, creating an orbit. This experience of apparent weightlessness occurs because the astronauts and the spacecraft fall at the same rate, making it seem as if there is no gravitationally-induces acceleration acting on them.
The idea that weightlessness is due to being far from Earth or because of high speed is a common misconception. Gravity at the altitude of the Space Shuttle or the ISS is only slightly weaker than at the Earth's surface. The sense of weightlessness experienced by astronauts is a result of them being in the same orbit as their spacecraft, thus they do not feel the force of gravity as an individual weight because everything around them is accelerating at the same rate towards the Earth.
Thus, weightlessness experienced by astronauts is merely apparent, a consequence of orbital mechanics and the laws of physics described by Newton, and not due to the absence of gravitational forces.
Astronauts appear weightless in a space shuttle because they are in free fall while in orbit, which creates a continuous state of microgravity.
Explanation:The real reason astronauts seem weightless in the space shuttle is not due to an absence of gravity; rather, it is because they are in a state of free fall along with the space shuttle. Just like in the analogy of a broken elevator cable where passengers experience weightlessness because they are in free fall, astronauts in orbit experience similar sensations for the same reason. Their orbit is essentially a continuous free fall towards Earth, but because the shuttle is moving forward at a high velocity, it keeps missing Earth. This means that the gravitational force is still acting on the astronauts, but it affects them and the shuttle uniformly, causing them to feel weightless or in a state of microgravity.
It takes over a majority of the elctoral votes to win the presidency.
TRUE
FALSE
Describe the impact of fair trade and ecotourism on Central America.
Fair trade and ecotourism have had notable impacts on Central America. While fair trade under CAFTA has led to job creation but also centralized wealth, ecotourism promotes sustainable development and nature conservation, boosting local economies and providing an alternative to environmentally detrimental practices.
Explanation:The impact of fair trade and ecotourism on Central America has been significant in various ways. Fair trade has been aimed at providing a more equitable exchange for producers in developing regions, such as Central America. However, the implementation of the Central American Free Trade Agreement (CAFTA) has resulted in mixed consequences. While it provides jobs and infrastructure, it also channels wealth to a few at the top, with little sharing with those contributing to wealth generation.
Protests and anti-CAFTA activities in Central American countries have highlighted concerns that wealth generated from exploitation of cheap labor does not remain within the region, diminishing the power of these countries to self-regulate and protect citizens.
Conversely, ecotourism has emerged as a sustainable economic model that incentivizes conservation of natural resources and contributes to local economies. In Central America, countries like Costa Rica and Panama are leveraging their rich biodiversity and natural landscapes to attract tourists. This not only provides an alternative to traditional industries but also encourages the preservation of wildlife habitats. Understanding the lucrative potential of ecotourism has led some communities to prioritize conservation over other forms of land use that can be more harmful to the environment.
As Central America develops economically, the impact of these industries continues to shape its rural and urban landscapes. High population growth and shifts from rural to urban living have created challenges such as higher unemployment rates, which initiatives like CAFTA and ecotourism strive to address. Natural disasters also recurrently affect the region, influencing its economic stability and development strategies.
Which kind of map uses contour lines to show elevation? a climate map a physical map a topographical map a special purpose map
Describe how heat is transferred from the core through the mantle to the crust?
The capital of an ionic column is adorned with a/an
a. cornice.
b. krepis.
c. volute.
d. stylobate.
What is the overall climate of the atacama desert?
What is an officail language in all north african countries?
How did the destination of the Potawatomi, Miami, Shawnee, and Seneca differ from that of the Cherokee, Chickasaw, Choctaw, Creek, and Seminole? I'm referring to the relocation of the tribes
The Cherokee, Chickasaw, Choctaw, Creek, and Seminole tribes of the Southeast were forcibly relocated to Oklahoma in the brutal Trail of Tears, while the Potawatomi, Miami, Shawnee, and Seneca tribes from the Great Lakes region and the Northeast had different experiences with moving to various mid-western states and living on reservations.
Explanation:The relocation of Native American tribes in the 19th century differed based on their geographical locations and the policies at play. The tribes like Cherokee, Chickasaw, Choctaw, Creek, and Seminole, facing displacement from the Southeast, were subject to a mass forced relocation known as the Trail of Tears. This policy pushed these tribes towards the western territory, present-day Oklahoma, and resulted in high mortality rates amongst them.
Meanwhile, the Potawatomi, Miami, Shawnee, and Seneca tribes were primarily in the Great Lakes region and the Northeast. Their displacement was somewhat different.
Shawnee, and Miami were mainly forced to move to Kansas and Oklahoma, while Potawatomi were scattered in several mid-western states, and Seneca remained in New York on reservations. Overall, while all experienced displacement, the experiences between the southeastern tribes and their northeastern counterparts varied.
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The Potawatomi, Miami, Shawnee, and Seneca were relocated to various regions across the Midwest, while the Cherokee, Chickasaw, Choctaw, Creek, and Seminole were primarily relocated to present-day Oklahoma.
The destination of the Potawatomi, Miami, Shawnee, and Seneca tribes differed from that of the Cherokee, Chickasaw, Choctaw, Creek, and Seminole tribes in that the former were generally relocated to reservations west of the Mississippi River, primarily in present-day Kansas and Oklahoma, as part of the U.S. government's Indian removal policy in the 1830s and 1840s. This policy was enforced by the Indian Removal Act of 1830, which was signed into law by President Andrew Jackson. In contrast, the Cherokee, Chickasaw, Choctaw, Creek, and Seminole tribes, often referred to as the Five Civilized Tribes, were forcibly relocated to what was then known as Indian Territory, which later became part of Oklahoma, during the Trail of Tears and other forced migration events. This territory was further west and south of the areas where the Potawatomi, Miami, Shawnee, and Seneca were initially relocated. The relocation of these tribes was a result of the U.S. government's policy to acquire land for European-American settlement and to remove Native American tribes from their ancestral homelands in the Southeastern United States. The removal process often involved coercion, treaties made under duress, and military force, leading to significant loss of life and cultural upheaval for the tribes involved.True or false. minerals can be solids or liquids
Which of the following statements about the physical geography of North America is true?
A. The Mississippi drainage basin is the fifth largest in the world.
B. The largest tributary of the Mississippi is the Arkansas River.
C. The most geologically active region of North America is found along the West Coast.
D. The ancient rock of the Canadian Shield covers about one-fourth of Canada.
Sputnik is the name of the FIRST __________.Select one of the options below as your answer: A. space station in an earth orbit B. man-made satellite placed into orbit around the earth C. manned space vehicle D. space probe to be sent beyond the solar system
Clastic, chemical, and organic are the three main types of
a. igneous rocks.
b. plutonic rocks.
c. sedimentary rocks.
d. metamorphic rocks. user: which rock is formed from organisms?
a. granite
b. coal
c. quartz
d. olivine
Which of the following are names of Antarctica's larger ice shelves?
Larsen
Filchner-Ronne
Massif
Erebus
Ross
Vostok
Answer:
A, B, and E
Explanation:
All the processes that form mountain ranges are known as
The long-term weather conditions in an area is referred to as the
current.
atmosphere.
environment.
climate.
What is the name of the famous waterfalls in the Sierra Maestra in Cuba?
The Sierra Maestra in Cuba does not have a widely recognized named waterfall that is a major tourist spot like Angel Falls or Iguazú Falls.
Explanation:The famous waterfalls in the Sierra Maestra in Cuba are not as well-known or as frequently visited as some other major waterfalls around the world like Angel Falls, Iguazú Falls, or Niagara Falls. Unfortunately, there is no specific name provided for a waterfall in the Sierra Maestra that enjoys a significant level of international fame or recognition as a tourist spot on its own. While Cuba is a magnet for tourists due to its beaches and clear waters, if there is a notable waterfall in the Sierra Maestra, it is not widely known under a specific name at this time.
Name 2 pieces of evidence about sea-floor spreading.
Occurs when particles of sediment in flowing water scrape against the streambed.
Answer: Abrasion
Abrasion occurs when particles of sediment in flowing water scrape against the streambed.
Explanation:
Abrasion refers to a process which occurs when waves break on the shore which results in water, stones and energy of the waves causing erosion. It is caused as a result of scuffing, scratching, wearing down, marring, and rubbing away of materials. It’s intensity rest on the hardness, velocity, mass and concentration of the moving particles or materials.
Most peoples of sub-Saharan Africa speak a language that is part of which family?
A)
Bantu
B)
Swahili
C)
Ashanti
D)
Egyptian
Answer:
bantu
Explanation:
Most peoples of sub-Saharan Africa speak a language that is part of the Bantu family. This language and culture group originated in west Africa in modern-day Nigeria. From the 1000s BCE through the 500s CE the people spread eastward and southward across the rest of the continent.
How has industrialization shaped the cultural geography of the US?
Answer:
Industry is one of the main agents for transforming space. When a previously non-industrialized area receives a relative number of factories, the tendency is to receive more migrants to its area, accelerating its urbanization.
With more people residing in the same place, more demand is generated by the commercial activity and also in the services sector, which expand and produce more jobs. Among other positive aspects, mention is made of the higher tax collection (although, almost always, large companies do not contribute so much to this aspect).
Among the negative effects of industrialization, we can mention the impacts generated on the environment, given that, depending on the type of factory and the infrastructures offered to it, more pollutants are generated in the atmosphere and also in the soil and water courses. In addition, the tax incentives offered by the government are criticized for making the population pay more taxes than the big companies.
The power of industry to intervene in societies is so high that even their modes of production, that is, the predominant way in which their production lines operate, interfere in the organization of space, generating more or less products and jobs, among other elements . In the age of Fordism, production was mass, with more jobs in the secondary sector; what has radically changed in the era of Toyotism.
The Andes Mountains can be found in:
North America
Europe
Africa
South America
Asia
The coral reef community is best described as a community based on animals that migrate from one area of ocean to another. true or false?
Water that fills the cracks and spaces in underground soil and rock layers is called
Water that fills the cracks and spaces in underground soil and rock layers is called Groundwater.
What is soil?Soil, also commonly referred to as earth or dirt, is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life.
What is a rock layer?A rock is any naturally occurring solid mass or aggregate of minerals or mineraloid matter.
What is groundwater?Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations.
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True or False: The First Continental Congress was formed to act as the body of government during the Revolutionary War.
True
False
Answer:
true
Explanation:
Answer:
True
Explanation:
Granite is an igneous rock that forms from magma cools below earths surface why would granite have larger crystals in igneous rocks formed from lava cool above earths surface
what the imaginary line that passes through the north and south poles
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India and China have enacted population policies to confront the reality that they are __________. A. rapidly losing their populations to disease B. rapidly losing their populations to emigration C. the two most populous countries in the world D. unable to fulfill their labor needs because of population decline
In the diagram of the earth's interior which part causes the diffraction of p waves made by earthquakes?
Which of the statements below is not a characteristic of economically developed nations?
Answer:
D) reduced use of resources
Explanation:
As the developed nations are characterized by a capitalist economy and are economically developed and have a well-developedadvanced technological infrastructure and thus have a high demand for resources for consumption by the economy. They compose the 60 .8% of the GDP and have high rates of standards of living and a well-developed market system of trade.