Science Book

Uniform rectilinear motion The movement is relative The movement of a body, seen by an observer, depends on the reference frame in which the observer is situated. Source: https://th.bing.com/th/id/R.e77fbd76f41c851355c4417b3653c06e?rik=kb076FHHKTn9uQ&riu=http%3a%2f%2fprofademir.no.comunidades.net%2fimagens%2ftraj.gif&ehk=cz0F%2bfhrQcrCGDUQKSOFBZOfiEy%2fpSqtN6v6UbV8%2b7g%3d&risl=&pid=ImgRaw&r=0 An observer B, in a train (which moves on the tracks), and the observer A, stationary on the Earth. For observer A, observer B is in motion, along with the train. However, from the point of view of observer B, observer A is moving in the opposite direction to the movement of the train on Earth. Uniform rectilinear motion Distance, speed and time When a body moves with constant velocity along a rectilinear path, we say that its motion is uniform rectilinear. The word "uniform" indicates that the velocity value remains constant. We can find the distance traveled by an

Fungi With bacteria, they are important decomposers, as they feed on organic substances from dead leaves, corpses and waste, contributing to the recycling of matter. Although many species of fungi are parasites of plants and animals, others maintain ecological relationships of the mutualism type, that is, relationships in which there is an exchange of benefits between different species. General features Fungi are eukaryotes and, although there are unicellular forms, such as yeast, most are formed by a tangle of filaments, the hyphae, whose set is called mycelium. The cell wall is formed by chitin, a nitrogenous polysaccharide that also appears in the skeleton of arthropods; in some cases, there is also cellulose. Some fungi also have reproductive structures, the fruiting or fruiting bodies, which correspond to the visible part above the ground, called the mushroom. Nutrition and breathing Nutrition is heterotrophic by absorbing simple organic molecules, which may come from extracorpore

 Sphere Source: https://s1.static.brasilescola.uol.com.br/be/conteudo/images/potencial-no-interior-uma-esfera-eletrizada-5515a9675440a.jpg Let a point in space and r be a positive real number. The set of all points whose distance from O is less than or equal to r is called a sphere with center O and radius r. The spherical surface with center O and radius r is the set of points whose distance from point O is equal to r. We can imagine a spherical surface as the "shell" of a sphere, but a shell without thickness. Sphere volume Source: https://static.preparaenem.com/2021/06/esfera-centro-raio.jpg The volume of a sphere of radius r is given by: Sphere surface area: Source: https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRjpkATG9xgRAD2gH3NCncB8GQ2V_f7Wsm3mb3u0UUtUevH9rp7KfvWEpPOs3hieRBxAsM&usqp=CAU References: CHAVANTE, Eduardo; PRESTES, Diego. Mathematics 2. First Edition. São Paulo: Quadrant, 2016.

 Cold War The consolidation of the cold war The United States and the Soviet Union ended World War II as allies. Their joint action against the Axis was decisive in ridding Europe of the Nazi presence. The clearest reason for the breakup was ideological. Capitalism and socialism, incompatible in their way of understanding different spheres of human life, from the role of the State to the priority rights of citizens, led to disagreement between the United States and the Soviet Union regarding the purposes of the political order and the methods of acting within it. Without constituting a homogeneous period, due to the aggravation of tensions followed by the distension between the rival poles, the Cold War lasted almost half a century, until the breakup of the Soviet Union, in 1991. With the aim of fighting communism and Soviet influence, Secretary of State George Marshall launched the Marshall Plan, an investment and economic recovery program for European countries in crisis after the wa

 French Revolution The French Revolution can be considered, for the political world, what the Industrial Revolution was for the economy. In other words, one could no longer understand politics from then on without the references of the French Revolution. With the French Revolution, the social, political and economic barriers to capitalism were decisively weakened. In addition, there was a significant demographic growth in France, which required a corresponding economic development. Instead, low agricultural production resulting from feudal impediments to productivity, exacerbated by droughts and floods, caused the price of wheat to rise sharply, and even bread became an almost prohibitive item for the low-income population, spreading misery and famine in French territory. The economic rise of the bourgeoisie came up against the regulations, prohibitions and taxation dictated by the absolute state. Thus, it was imperative to eliminate mercantilist practices so that there could be the ec

 The roman civilization Monarchy (founding of Rome to the 6th century BC) Rome was born from a small village in the fertile lands of Lazio, center of the Italian peninsula, receiving influence from several Indo-European peoples who settled in the region since the 10th century BC, such as the Latin Falisci and Sabines. The monarchic period, which comprises the rule of the last three kings (Tarquinius the Elder; Servius Tullius; and Tarquinius the Superb), refers to the period of Etruscan domination, and there are historical records of its existence. During this period, Rome had an essentially agricultural economy. From a social point of view, the Roman elite was formed by the patricians, large landowners who constituted an aristocracy with political and religious privileges. Below them were the commoners, free men who had no political rights and were therefore marginalized. In the lowest social situation were the slaves, indebted or defeated in wars, considered simple instruments of wor

Mendel's Laws Mendel's first experiments One of the reasons for Mendel's success was the material chosen for his research: the pea of the species Pisum sativum. This vegetable has a number of advantages: It is easy to grow. It produces many seeds and, consequently, a large number of offspring. The flower is hermaphrodite and reproduces by self-fertilization. Cross-fertilization can be achieved by making a flower cross with another flower on another pea plant. In addition to these advantages, the pea has a number of simple and contrasting characteristics: The seed color is yellow or green, with no intermediate shades. The seed shape is smooth or wrinkled. Either the plant was too tall or too short. The fact that Mendel analyzed one characteristic at a time, without worrying about the others, contributed to the success of his research. The first crosses In one of the experiments, he tried to cross yellow-seeded plants with green-seeded plants. Before, however, he tried to sel

Pollution Pollution is the addition to the environment of products that threaten the health or survival of humans or other organisms. Air pollution The burning of fossil fuels in factories, plants and motor vehicles releases a series of toxic products into the air, in addition to carbon dioxide, the main gas causing global warming. One of these products, formed in the incomplete combustion of fossil fuels and released in cigarette smoke, is carbon monoxide (CO), capable of combining with hemoglobin, which reduces the transport of oxygen by red blood cells and makes it difficult for the fabrics. Thermal inversion Under certain atmospheric conditions, a layer of warm air may lie on top of a layer of cold air close to the ground. This situation is known as a thermal inversion. This phenomenon can last for a few hours or weeks. Water pollution One of the most serious problems of water pollution is the release of non-biodegradable substances, such as heavy metals and persistent pollutants,

 World energy production Energy Since the emergence of primitive societies, obtaining and using energy has played a fundamental role in the well-being of people and the development of economic activities. Modern society increasingly uses energy in industrial, agricultural, service and commerce activities, in addition to domestic consumption. This fact is directly related to the degree of industrialization, economic development and the living conditions of the population in each region. Fossil fuels Petroleum Petroleum is a fossil hydrocarbon of organic origin found in sedimentary basins resulting from the burial of ancient aquatic environments. Its various by-products are present in all states of aggregation: solid (asphalt, plastics, among others), liquid (lubricating oils, gasoline and other fuels) and gaseous (fuel gas). Petroleum is liquid and is easier to transport than coal, which is why it began to be consumed in increasing quantities. The increase in consumption was accompanied

This forest covers most of the northern region of South America and is the largest tropical river forest in the world, with a hot and humid climate and abundant rainfall. In general terms, it is divided into mainland and flooded. The terra firme forests are located in higher regions, where there is no flooding. The igapó forests are located on low lands, close to rivers, and therefore remain almost flooded. Lowland forests are only temporarily flooded. Among mammals, primates (guariba, paunchy and other monkeys), carnivores (jaguar, coati, ferret, puma), anteaters, sloths, squirrels, deer, wild pigs and aquatic mammals (fish ox, otter and giant otter). There is a wide variety of birds, such as curassows, toucans, macaws and birds. Among the reptiles, there are lizards, alligators, turtles and snakes. There is also a varied collection of amphibians, fish and a multitude of invertebrates.                                                                       photo: portaldoamazonas.com To