Magna Concursos

Foram encontradas 1.716 questões.

2953867 Ano: 2023
Disciplina: Inglês (Língua Inglesa)
Banca: CESPE / CEBRASPE
Orgão: TBG

In the quest for technological advancements that can revolutionize our world, the scientific community has always been captivated by the elusive phenomenon of superconductivity. For decades, researchers have strived to unlock its full potential, seeking to discover materials that can exhibit superconducting properties at room temperature. And now, the wait might finally be over! Enter LK-99, a groundbreaking potential room-temperature superconductor that has sent shockwaves through the scientific world, spearheaded by a team of brilliant minds from Korea University, led by esteemed researchers Sukbae Lee and Ji-Hoon Kim.

Superconductors are materials that can conduct electricity with zero resistance, leading to unprecedented energy efficiency and technological advancements. In summary, LK-99 represents an exciting prospect as a potential room-temperature superconductor, but its superconducting properties have yet to be confirmed and independently verified.

Room temperature superconductors could revolutionize the energy sector by enabling lossless power transmission over long distances. With reduced energy dissipation during transmission, electricity could be distributed more efficiently, lowering carbon footprints and electricity costs.

Internet: <dataconomy.com/> (adapted).

According to the preceding text, judge the following item.

The search for room temperature superconductors is likely to be over.

 

Provas

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2953866 Ano: 2023
Disciplina: Inglês (Língua Inglesa)
Banca: CESPE / CEBRASPE
Orgão: TBG

In the quest for technological advancements that can revolutionize our world, the scientific community has always been captivated by the elusive phenomenon of superconductivity. For decades, researchers have strived to unlock its full potential, seeking to discover materials that can exhibit superconducting properties at room temperature. And now, the wait might finally be over! Enter LK-99, a groundbreaking potential room-temperature superconductor that has sent shockwaves through the scientific world, spearheaded by a team of brilliant minds from Korea University, led by esteemed researchers Sukbae Lee and Ji-Hoon Kim.

Superconductors are materials that can conduct electricity with zero resistance, leading to unprecedented energy efficiency and technological advancements. In summary, LK-99 represents an exciting prospect as a potential room-temperature superconductor, but its superconducting properties have yet to be confirmed and independently verified.

Room temperature superconductors could revolutionize the energy sector by enabling lossless power transmission over long distances. With reduced energy dissipation during transmission, electricity could be distributed more efficiently, lowering carbon footprints and electricity costs.

Internet: <dataconomy.com/> (adapted).

According to the preceding text, judge the following item.

According to the text, scientists have long been seeking to recreate the experiment that uses LK-99.

 

Provas

Questão presente nas seguintes provas
2953865 Ano: 2023
Disciplina: Inglês (Língua Inglesa)
Banca: CESPE / CEBRASPE
Orgão: TBG

In the quest for technological advancements that can revolutionize our world, the scientific community has always been captivated by the elusive phenomenon of superconductivity. For decades, researchers have strived to unlock its full potential, seeking to discover materials that can exhibit superconducting properties at room temperature. And now, the wait might finally be over! Enter LK-99, a groundbreaking potential room-temperature superconductor that has sent shockwaves through the scientific world, spearheaded by a team of brilliant minds from Korea University, led by esteemed researchers Sukbae Lee and Ji-Hoon Kim.

Superconductors are materials that can conduct electricity with zero resistance, leading to unprecedented energy efficiency and technological advancements. In summary, LK-99 represents an exciting prospect as a potential room-temperature superconductor, but its superconducting properties have yet to be confirmed and independently verified.

Room temperature superconductors could revolutionize the energy sector by enabling lossless power transmission over long distances. With reduced energy dissipation during transmission, electricity could be distributed more efficiently, lowering carbon footprints and electricity costs.

Internet: <dataconomy.com/> (adapted).

According to the preceding text, judge the following items.

The adjective “groundbreaking” (fourth sentence of the first paragraph) could be correctly replaced by “conventional”, without changing the meaning of the text.

 

Provas

Questão presente nas seguintes provas
2953864 Ano: 2023
Disciplina: Inglês (Língua Inglesa)
Banca: CESPE / CEBRASPE
Orgão: TBG

In the quest for technological advancements that can revolutionize our world, the scientific community has always been captivated by the elusive phenomenon of superconductivity. For decades, researchers have strived to unlock its full potential, seeking to discover materials that can exhibit superconducting properties at room temperature. And now, the wait might finally be over! Enter LK-99, a groundbreaking potential room-temperature superconductor that has sent shockwaves through the scientific world, spearheaded by a team of brilliant minds from Korea University, led by esteemed researchers Sukbae Lee and Ji-Hoon Kim.

Superconductors are materials that can conduct electricity with zero resistance, leading to unprecedented energy efficiency and technological advancements. In summary, LK-99 represents an exciting prospect as a potential room-temperature superconductor, but its superconducting properties have yet to be confirmed and independently verified.

Room temperature superconductors could revolutionize the energy sector by enabling lossless power transmission over long distances. With reduced energy dissipation during transmission, electricity could be distributed more efficiently, lowering carbon footprints and electricity costs.

Internet: <dataconomy.com/> (adapted).

According to the preceding text, judge the following items.

The article confirms that the long awaited room temperature superconductor has finally been discovered.

 

Provas

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2953863 Ano: 2023
Disciplina: Desenho Técnico e Industrial
Banca: CESPE / CEBRASPE
Orgão: TBG

Julgue o seguinte item, relativo à eletricidade e desenho técnico industrial.

Em desenhos técnicos, linhas tracejadas, largas ou estreitas, servem para indicar contornos e arestas não visíveis.

 

Provas

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2953862 Ano: 2023
Disciplina: Desenho Técnico e Industrial
Banca: CESPE / CEBRASPE
Orgão: TBG

Julgue o seguinte item, relativo à eletricidade e desenho técnico industrial.

Em desenhos técnicos, um traço e ponto estreito, largo nas extremidades e na mudança de direção, serve para indicar planos de corte.

 

Provas

Questão presente nas seguintes provas
2953861 Ano: 2023
Disciplina: Raciocínio Lógico
Banca: CESPE / CEBRASPE
Orgão: TBG
Provas:
O tráfego de veículos em dois cruzamentos é ilustrado pelo diagrama a seguir, em que as setas indicam o sentido do tráfego e x, y, z, a, b, c e d expressam as quantidades de veículos por hora que passam nos cruzamentos.
Enunciado 3278066-1

A partir dessas informações, e considerando z = y, julgue o item seguinte.

Se a = 600, b = 150, c = 300 e d = 450, então o valor de x + y + z é inferior a 1.200.

 

Provas

Questão presente nas seguintes provas
2953860 Ano: 2023
Disciplina: Raciocínio Lógico
Banca: CESPE / CEBRASPE
Orgão: TBG
Provas:
O tráfego de veículos em dois cruzamentos é ilustrado pelo diagrama a seguir, em que as setas indicam o sentido do tráfego e x, y, z, a, b, c e d expressam as quantidades de veículos por hora que passam nos cruzamentos.
Enunciado 3278065-1

A partir dessas informações, e considerando z = y, julgue o item seguinte.

Se a = b = d = 100, então o valor de c não pode ser superior a 300.

 

Provas

Questão presente nas seguintes provas
2953859 Ano: 2023
Disciplina: Matemática
Banca: CESPE / CEBRASPE
Orgão: TBG
Provas:

Julgue o item que se segue, relativo à transformação linear T: R3R3 dada por T(x, y, z) = (x + y, x z, zy).

A matriz da transformação linear T em relação à base canônica tem determinante igual a 0.

 

Provas

Questão presente nas seguintes provas
2953858 Ano: 2023
Disciplina: Matemática
Banca: CESPE / CEBRASPE
Orgão: TBG
Provas:

Julgue o item que se segue, relativo à transformação linear T: R3R3 dada por T(x, y, z) = (x + y, x z, zy).

O núcleo da transformação linear T é igual ao subespaço nulo V = {(0, 0, 0)}.

 

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