Prova de 2017: Universidade Estadual do Ceará (UECE) — questões com gabarito

Considerando a equação de formação da glicose não balanceada C + H2 + O2 → C6H12O6 , atente às seguintes equações:

I. C + O2 → CO2 ΔH = −94,1 kcal

II. H2 + ½ O2 → H2O ΔH = −68,3 kcal

III. C6H12O6 + 6O2 → 6CO2 + 6 H2O ΔH = −673,0 kcal

A massa de glicose formada a partir da reação de 14,4 g de carbono e sua entalpia de formação em kcal/mol serão, respectivamente,

Atente ao seguinte trecho de um artigo sobre a Conferência da ONU sobre Mudanças Climáticas, também conhecida como COP do Clima: “Havia no início da conferência um clima de desconfiança de que esses compromissos não seriam seguidos. Por um lado, países como Polônia, ainda muito dependentes de carvão, ameaçam as metas de redução das emissões de gases de efeito estufa da União Europeia como grupo. Alemanha também vem sendo muito criticada por, apesar de vir investindo muito em energias renováveis, ainda ter diversas usinas a carvão que, se não forem desativadas, tornam a meta alemã impossível de ser cumprida”.

COP do Clima deve reafirmar necessidade de cumprir compromissos até 2020. Giovana Girardi. 15 novembro 2017. Jornal Estadão. Disponível em http://sustentabilidade.estadao.com.br/blogs/ambiente-se/cop-do-clima-deve-reafirmar-necessidade-de-cumprir-compromissos-ate-2020/

A COP do Clima, realizada recentemente em Bonn, na Alemanha, reuniu além do Brasil, diversos países. Essa conferência teve como tema central 

Observe o que se diz a seguir a respeito do conceito de paisagem na geografia física: “Por meio do conceito de paisagem, o imaginário social transforma culturalmente a natureza, ao mesmo tempo que os sistemas técnicos agregam ao território as formas-conteúdo da paisagem constituídas por representações sociais”.

Vitte, Antônio Carlos, O Desenvolvimento do conceito de paisagem e a sua inserção na Geografia Física. Mercator - Revista de Geografia da UFC. 2007.

Considerando os aspectos relativos ao conceito de paisagem na geografia física, como tratado no excerto acima, é correto concluir que paisagem

Se n é um número inteiro maior do que dois, o valor de log_n   é

Seja f : R → R definida por f(x) = . Se M e m são respectivamente os valores máximo e mínimo que a função f assume, o valor do produto M.m é

A soma de todas as frações da forma , onde n é um elemento do conjunto {1, 2, 3, 4, 5}, é

No poema de Manoel de Barros, é descrita a seguinte sequência de atividades cotidianas com as quais o enunciador não deseja construir sua identidade: “Não aguento ser apenas um sujeito que abre portas, que puxa válvulas, que olha o relógio, que compra pão às 6 da tarde, que vai lá fora, que aponta lápis, que vê a uva, etc. etc.” (linhas 118- 125). Observe o que se diz a respeito disso.

I. Há uma gradação da ação mais importante para a menos importante.

II. As ações são descritas aleatoriamente, sem seguir uma linearidade lógica previamente explicitada.

III. O enunciador lista atividades recorrentes do seu cotidiano que, isoladas, não constroem sua identidade.

IV. A lista de ações poderia ainda ser estendida.

É correto o que se afirma somente em

                                              T E X T

      If all of the children who currently are sedentary started exercising every day, societies could save enormous amounts of money in the coming decades and have healthier citizens as a whole, according to a remarkable new study. In the United States alone, we could expect to save more than $120 billion every year in health care and associated expenses. The study is the first to use sophisticated computer simulations to arrive at a literal and sobering societal price tag for allowing our children to be sedentary.

      Inactivity is, of course, widespread among young people today. Recent research shows that in the United States and Europe, physical activity tends to peak at about age 7 for both boys and girls and tail off continually throughout adolescence. More than two-thirds of children in the United States rarely exercise at all.

      The immediate health consequences for inactive children and their families are worrisome. Childhood obesity, which is linked to lack of exercise, is common, as is the incidence of Type 2 diabetes and other health problems related to being overweight among children as young as 6.

      But the long-term financial costs of inactivity in the young, both for them and society as a whole, have never been quantified. So for the new study, which was published this week in Health Affairs, researchers with the Global Obesity Prevention Center at Johns Hopkins University in Baltimore and other institutions decided to create a bogglingly complex computer model of what the future could look like if we do or do not get more of our children moving.

      The researchers began by gathering as much public data as is currently available about the health, weight and physical activity patterns of all 31.7 million American children now aged 8 to 11, using large-scale databases from the Census Bureau, the Centers for Disease Control and Prevention, and other groups.

      The researchers fed this information into a computerized modeling program that created an electronic avatar for every American child today. In line with reality, two-thirds of these children were programmed to rarely exercise and many were overweight or obese.

      The scientists then had the simulated children grow up. Using estimations about how calorie intake and activity patterns affect body weight, the program changed each virtual child’s body day-by-day and year-by-year into adulthood. Most became increasingly overweight.

      As the simulated children became adults, the scientists then modeled each one’s health, based on obesity-associated risks for heart disease, diabetes, stroke and cancer, and also the probable financial price of dealing with those diseases (adjusted for future inflation), both in terms of direct expenses for hospitalizations, drugs and so on, and lost productivity because of someone’s being ill.

      The results were staggering. According to the computer model, the costs of today’s 8- to 11- year-olds being inactive and consequently overweight would be almost $3 trillion in medical expenses and lost productivity every year once the children reached adulthood and for decades until their deaths.

      But when the researchers tweaked children’s activity levels within their model, the numbers began to look quite different. If they presumed that, in an imaginary America, half of all children exercised vigorously for about 25 minutes three times a week, such as during active recess or sports or, more ambitiously, ran around and moved for at least an hour every day, which is the amount of youth exercise recommended by the C.D.C., their virtual lives were transformed.

      Most obviously, the incidence of childhood obesity fell by more than 4 percent, a change that resonated throughout the simulated children’s lives and society. There were about half a million fewer cases of adult-onset heart disease, diabetes, cancer and strokes in this simulation, and the society-wide costs associated with these illnesses dropped by about $32 billion every year if the children romped about for 25 minutes three times per week and by almost $37 billion if they moved for an hour every day.

      The impacts were even more substantial when the researchers assumed that 100 percent of the children who are now sedentary got regular exercise. In this scenario, the annual total costs during adulthood from obesity-associated medical expenses and lost productivity plummeted by about $62 billion when children were active three times a week and by more than $120 billion every year when all of the virtual children played and moved for at least an hour each day.

                                                     From: https://www.nytimes.com May 3, 2017

                                              T E X T

      If all of the children who currently are sedentary started exercising every day, societies could save enormous amounts of money in the coming decades and have healthier citizens as a whole, according to a remarkable new study. In the United States alone, we could expect to save more than $120 billion every year in health care and associated expenses. The study is the first to use sophisticated computer simulations to arrive at a literal and sobering societal price tag for allowing our children to be sedentary.

      Inactivity is, of course, widespread among young people today. Recent research shows that in the United States and Europe, physical activity tends to peak at about age 7 for both boys and girls and tail off continually throughout adolescence. More than two-thirds of children in the United States rarely exercise at all.

      The immediate health consequences for inactive children and their families are worrisome. Childhood obesity, which is linked to lack of exercise, is common, as is the incidence of Type 2 diabetes and other health problems related to being overweight among children as young as 6.

      But the long-term financial costs of inactivity in the young, both for them and society as a whole, have never been quantified. So for the new study, which was published this week in Health Affairs, researchers with the Global Obesity Prevention Center at Johns Hopkins University in Baltimore and other institutions decided to create a bogglingly complex computer model of what the future could look like if we do or do not get more of our children moving.

      The researchers began by gathering as much public data as is currently available about the health, weight and physical activity patterns of all 31.7 million American children now aged 8 to 11, using large-scale databases from the Census Bureau, the Centers for Disease Control and Prevention, and other groups.

      The researchers fed this information into a computerized modeling program that created an electronic avatar for every American child today. In line with reality, two-thirds of these children were programmed to rarely exercise and many were overweight or obese.

      The scientists then had the simulated children grow up. Using estimations about how calorie intake and activity patterns affect body weight, the program changed each virtual child’s body day-by-day and year-by-year into adulthood. Most became increasingly overweight.

      As the simulated children became adults, the scientists then modeled each one’s health, based on obesity-associated risks for heart disease, diabetes, stroke and cancer, and also the probable financial price of dealing with those diseases (adjusted for future inflation), both in terms of direct expenses for hospitalizations, drugs and so on, and lost productivity because of someone’s being ill.

      The results were staggering. According to the computer model, the costs of today’s 8- to 11- year-olds being inactive and consequently overweight would be almost $3 trillion in medical expenses and lost productivity every year once the children reached adulthood and for decades until their deaths.

      But when the researchers tweaked children’s activity levels within their model, the numbers began to look quite different. If they presumed that, in an imaginary America, half of all children exercised vigorously for about 25 minutes three times a week, such as during active recess or sports or, more ambitiously, ran around and moved for at least an hour every day, which is the amount of youth exercise recommended by the C.D.C., their virtual lives were transformed.

      Most obviously, the incidence of childhood obesity fell by more than 4 percent, a change that resonated throughout the simulated children’s lives and society. There were about half a million fewer cases of adult-onset heart disease, diabetes, cancer and strokes in this simulation, and the society-wide costs associated with these illnesses dropped by about $32 billion every year if the children romped about for 25 minutes three times per week and by almost $37 billion if they moved for an hour every day.

      The impacts were even more substantial when the researchers assumed that 100 percent of the children who are now sedentary got regular exercise. In this scenario, the annual total costs during adulthood from obesity-associated medical expenses and lost productivity plummeted by about $62 billion when children were active three times a week and by more than $120 billion every year when all of the virtual children played and moved for at least an hour each day.

                                                     From: https://www.nytimes.com May 3, 2017

                                              T E X T

      If all of the children who currently are sedentary started exercising every day, societies could save enormous amounts of money in the coming decades and have healthier citizens as a whole, according to a remarkable new study. In the United States alone, we could expect to save more than $120 billion every year in health care and associated expenses. The study is the first to use sophisticated computer simulations to arrive at a literal and sobering societal price tag for allowing our children to be sedentary.

      Inactivity is, of course, widespread among young people today. Recent research shows that in the United States and Europe, physical activity tends to peak at about age 7 for both boys and girls and tail off continually throughout adolescence. More than two-thirds of children in the United States rarely exercise at all.

      The immediate health consequences for inactive children and their families are worrisome. Childhood obesity, which is linked to lack of exercise, is common, as is the incidence of Type 2 diabetes and other health problems related to being overweight among children as young as 6.

      But the long-term financial costs of inactivity in the young, both for them and society as a whole, have never been quantified. So for the new study, which was published this week in Health Affairs, researchers with the Global Obesity Prevention Center at Johns Hopkins University in Baltimore and other institutions decided to create a bogglingly complex computer model of what the future could look like if we do or do not get more of our children moving.

      The researchers began by gathering as much public data as is currently available about the health, weight and physical activity patterns of all 31.7 million American children now aged 8 to 11, using large-scale databases from the Census Bureau, the Centers for Disease Control and Prevention, and other groups.

      The researchers fed this information into a computerized modeling program that created an electronic avatar for every American child today. In line with reality, two-thirds of these children were programmed to rarely exercise and many were overweight or obese.

      The scientists then had the simulated children grow up. Using estimations about how calorie intake and activity patterns affect body weight, the program changed each virtual child’s body day-by-day and year-by-year into adulthood. Most became increasingly overweight.

      As the simulated children became adults, the scientists then modeled each one’s health, based on obesity-associated risks for heart disease, diabetes, stroke and cancer, and also the probable financial price of dealing with those diseases (adjusted for future inflation), both in terms of direct expenses for hospitalizations, drugs and so on, and lost productivity because of someone’s being ill.

      The results were staggering. According to the computer model, the costs of today’s 8- to 11- year-olds being inactive and consequently overweight would be almost $3 trillion in medical expenses and lost productivity every year once the children reached adulthood and for decades until their deaths.

      But when the researchers tweaked children’s activity levels within their model, the numbers began to look quite different. If they presumed that, in an imaginary America, half of all children exercised vigorously for about 25 minutes three times a week, such as during active recess or sports or, more ambitiously, ran around and moved for at least an hour every day, which is the amount of youth exercise recommended by the C.D.C., their virtual lives were transformed.

      Most obviously, the incidence of childhood obesity fell by more than 4 percent, a change that resonated throughout the simulated children’s lives and society. There were about half a million fewer cases of adult-onset heart disease, diabetes, cancer and strokes in this simulation, and the society-wide costs associated with these illnesses dropped by about $32 billion every year if the children romped about for 25 minutes three times per week and by almost $37 billion if they moved for an hour every day.

      The impacts were even more substantial when the researchers assumed that 100 percent of the children who are now sedentary got regular exercise. In this scenario, the annual total costs during adulthood from obesity-associated medical expenses and lost productivity plummeted by about $62 billion when children were active three times a week and by more than $120 billion every year when all of the virtual children played and moved for at least an hour each day.

                                                     From: https://www.nytimes.com May 3, 2017