Questões: Universidade Federal dos Vales do Jequitinhonha e Mucuri de Minas Gerais — com gabarito

MACH é unidade de velocidade que indica quantas vezes o objeto está acima da velocidade do som no arem condições normais.

Sabendo que a velocidade do som é de 340 m/s, ASSINALE a alternativa que contém a velocidade inicial da bala e o tipo de reação da queima da pólvora, considerando a conservação da quantidade de movimento.

Esta figura mostra três esferas com mesmo volume, mas com massas diferentes.

• A esfera I flutua com metade do volume submerso.

• A esfera II flutua com todo o volume submerso.

•A esfera III está apoiada no fundo do recipiente.

Observando o Princípio de Arquimedes, ASSINALE a alternativa que contém a informação correta sobre a densidade e o empuxo sofrido pelas esferas.

Uma piscina oficial olímpica tem as dimensões: 50m de comprimento, 25m de largura e 3m de profundidade. Para se evitar a proliferação de microorganismos é recomendado um pH acido.

Considerando a densidade da água limpa como 1000 Kg para cada 1,0 m³ e o seu calor específico como 4180J/kg°C, ASSINALE a alternativa que contém a energia necessária para elevar em 1,0°C toda a água de uma piscina olímpica e o procedimento que torna a água mais ácida.

O NO_x é o principal causador da chuva ácida. A seguir temos três reações que produzem NO_x:

I - N₂+ O₂ → 2NO

II - 2NO + O₂ → 2NO₂

III - 2NO₂+ O₂  →  2NO₃

ASSINALE a alternativa que contém a informação correta sobre o número de oxidação do Nitrogênio em cada reação.

Leia o texto I para resolver a questão.

A tirinha é de autoria de André Dahmer e faz parte de uma série denominada “Quadrinhos dos anos 10”, a qual foi transformada em um livro de mesmo nome publicado em 2016.

Texto I

Fonte: DAHMER, André. http://www.scoopnest.com/pt/user/malvados/593101177157459969

Acessado em: 15/05/2017

Texto I THE

"13 REASONS WHY" ACTORS HAD THERAPY DOGS TO HELP WITH EMOTIONAL SCENES By Hannah Orenstein - Apr 17, 2017

     “13 Reasons Why” doesn't shy away from tackling heavy issues like bullying, rape, and suicide. But bringing such dark stories to life can take a toll on actors, which is why the cast had access to cute, cuddly therapy dogs while filming the show.

     "They had therapy dogs on set," Dylan Minnette, who played Clay, told PopSugar. "There was a puppy per hour. They really tried to help out. The puppies helped." According to the Alliance of Therapy Dogs, the pups are "on a mission of sharing smiles and joy."

     Dylan also acknowledged that Katherine Langford, who played Hannah, had the most intense experience of them all. "She had the brunt of the emotional stuff," he continued. "I mean, we all have very emotional parts, but this is about her character." In the same interview, Katherine acknowledged the intensity of her character's role and explained why it was so important to bring these tough scenes to life.

     "We always read a new script at a table read, and once we hit episode nine, there was silence," she said. "That's when we realized what we were doing was important. That's the moment that's kind of ingrained in my head as, 'This is really important.' We cover so many intense issues. I feel like so much of Hannah's life, especially the last five episodes, is so tragic that you just have to put that shock aside and get through it. It's only been after the show and after wrapping that I've gone, wow, we really did handle some really heavy stuff. I'm really proud of how we handle it, because as you said we don't shy away from them." 

Fonte: Acesso:<Fonte: Acesso: 22/05/2017.> 22/05/2017.

Texto I THE

"13 REASONS WHY" ACTORS HAD THERAPY DOGS TO HELP WITH EMOTIONAL SCENES By Hannah Orenstein - Apr 17, 2017

     “13 Reasons Why” doesn't shy away from tackling heavy issues like bullying, rape, and suicide. But bringing such dark stories to life can take a toll on actors, which is why the cast had access to cute, cuddly therapy dogs while filming the show.

     "They had therapy dogs on set," Dylan Minnette, who played Clay, told PopSugar. "There was a puppy per hour. They really tried to help out. The puppies helped." According to the Alliance of Therapy Dogs, the pups are "on a mission of sharing smiles and joy."

     Dylan also acknowledged that Katherine Langford, who played Hannah, had the most intense experience of them all. "She had the brunt of the emotional stuff," he continued. "I mean, we all have very emotional parts, but this is about her character." In the same interview, Katherine acknowledged the intensity of her character's role and explained why it was so important to bring these tough scenes to life.

     "We always read a new script at a table read, and once we hit episode nine, there was silence," she said. "That's when we realized what we were doing was important. That's the moment that's kind of ingrained in my head as, 'This is really important.' We cover so many intense issues. I feel like so much of Hannah's life, especially the last five episodes, is so tragic that you just have to put that shock aside and get through it. It's only been after the show and after wrapping that I've gone, wow, we really did handle some really heavy stuff. I'm really proud of how we handle it, because as you said we don't shy away from them." 

Fonte: Acesso:<Fonte: Acesso: 22/05/2017.> 22/05/2017.

Texto I THE

"13 REASONS WHY" ACTORS HAD THERAPY DOGS TO HELP WITH EMOTIONAL SCENES By Hannah Orenstein - Apr 17, 2017

     “13 Reasons Why” doesn't shy away from tackling heavy issues like bullying, rape, and suicide. But bringing such dark stories to life can take a toll on actors, which is why the cast had access to cute, cuddly therapy dogs while filming the show.

     "They had therapy dogs on set," Dylan Minnette, who played Clay, told PopSugar. "There was a puppy per hour. They really tried to help out. The puppies helped." According to the Alliance of Therapy Dogs, the pups are "on a mission of sharing smiles and joy."

     Dylan also acknowledged that Katherine Langford, who played Hannah, had the most intense experience of them all. "She had the brunt of the emotional stuff," he continued. "I mean, we all have very emotional parts, but this is about her character." In the same interview, Katherine acknowledged the intensity of her character's role and explained why it was so important to bring these tough scenes to life.

     "We always read a new script at a table read, and once we hit episode nine, there was silence," she said. "That's when we realized what we were doing was important. That's the moment that's kind of ingrained in my head as, 'This is really important.' We cover so many intense issues. I feel like so much of Hannah's life, especially the last five episodes, is so tragic that you just have to put that shock aside and get through it. It's only been after the show and after wrapping that I've gone, wow, we really did handle some really heavy stuff. I'm really proud of how we handle it, because as you said we don't shy away from them." 

Fonte: Acesso:<Fonte: Acesso: 22/05/2017.> 22/05/2017.