Foram encontradas 50 questões.
Based on the text below, answer question 4.
Airline starts to weigh luggage AND passengers
[1] Finland's national carrier Finnair has started weighing passengers on its flights from the capital city of Helsinki. The weigh-ins are being done on a voluntary basis and are completely anonymous.
[2] A company spokesperson said the new initiative is to ensure safety standards on flights are adhered to. He said any airplane should not exceed the prescribed maximum weight for safe take-offs and landings. This weight is made up of the aircraft itself, the fuel, checked baggage and cargo, onboard catering, water tanks, and passengers. Finnair said airlines never know the exact weight of passengers and their carry-on baggage, so they have to rely on average estimates provided by aviation authorities.
[3] Passengers who volunteer to be weighed are stepping on weighing scales at the departure gates at Helsinki Airport. Finnair officials were initially concerned about a customer backlash because weight is such a personal issue. However, in the first week of the tests, over 1,000 passengers had agreed to be weighed. The company said: "we hope to have a good sample of volunteers, both business and leisure travellers, so that we can get the most accurate information possible for important balance calculations." It added: "Our customers have taken it really positively so far." An official said travellers could “rest assured" and have "peace of mind" that their weight would not be linked to their personal data.
(Adapted from https:/breakingnewsenglish.corm)
According to the text, it is correct to state that:
Provas
Based on the text below, answer question 3.
Jeff Bezos wants a trillion humans in solar system
Just when demographers are ringing alarm bells about overpopulation, Amazon founder Jeff Bezos says we need to populate our solar system. Mr. Bezos was asked for his thoughts on humanity living in outer space in a thousand years' time. He replied: "| would love to see, you know, a trillion humans living in the solar system. If we had a trillion humans, we would have at any given time 1,000 Mozarts and 1,000 Einsteins. Space would be full of life and intelligence and energy." He added that he wants to help "build heavy infrastructure that will be used by the space entrepreneurs of future generation, so that ingenuity and imagination can really be unleashed”.
(Adapted from https:/breakingnewsenglish.com)
In the excerpt “[...] so that ingenuity and imagination can really be unleashed.”, the words “ingenuity" and "unleashed" mean, respectively:
Provas
Based on the text below, answer questions 1 and 2.
Marine receives rare heroism award for saving victim shot 23 times
[1] Issa, now 25, decided to become a Marine when he was 18, he said in an interview with Marine Corps Times on Tuesday. He turned down a full ride to Ohio State University because it didn't feel right to him to pursue the privilege of college without first serving overseas.
[2] In January 2023, Issa was serving with the infantry unit 3rd Battalion, 3rd Marines, at Marine Corps Base Hawaii. The night of the shooting, he and a fellow Marine had wrapped up dinner at Olive Garden and walked into a bar in the Waikiki neighborhood of Honolulu in search of a bathroom. They had been there for only a few minutes when the gunfire started.
[3] When Issa saw the gunmen, he initially thought they were trying to enter the bar. He rushed toward the pair, pushing a few people behind a table to cover them as he went. Then he realized the shooters were targeting someone on the sidewalk. "I just felt like I was on a range; Issa said. “I don't know if it was one of those blocks that I had from being in the Marine Corps infantry, but at the time I didn't feel like there was any danger associated with shooting, but I did feel like there was danger for the victim.”
[4] The two gunmen escaped, but one of them sporadically was shooting back at the victim as he ran away, Issa recalled. In those moments, the Marine exposed himself to the fire to attend to the victim.
[5] Issa relied on the casualty care simulations he had run through in training. He took off the victim's shirt and checked him for bullet wounds, of which there were several. Meanwhile, Issa felt a warm sensation on his knees, which were applying pressure near the victim's crotch to cut off the femoral artery. It was blood. Realizing that the victim's legs needed attention, Issa removed the flannel shirt from his own body and fashioned a makeshift tourniquet for the right leg. When two police officers arrived, Issa received from them a pair of real tourniquets that he used on the victim's legs.
[6] The case later was classified as second-degree attempted murder, the Honolulu Police Department told Marine Corps Times on Wednesday. No arrests were made, the police said, and the victim withdrew his complaint and did not want to prosecute.
[7] That night, Issa told his first sergeant that there had been a shooting, though he gave few details. But three Marine officers who happened to have been at the bar and witnessed Issa's actions informed his command, Issa said.
[8] On Feb. 19, Issa received the Navy and Marine Corps Medal from Navy Capt. Michael Puffer, the commanding officer of the Naval ROTC at the University of South Florida. The medal - the highest award for heroism outside of combat - recognizes service members who have taken heroic actions at the risk of their own lives. It's a rare honor.
[9] But, for now, Issa's medal is tucked away in a storage container. Issa said he means no disrespect to those who put in effort to secure him the recognition. It's just that he didn't want an award, because, in his view, what he did is just what anyone should try to do in that situation. "I don't think that any life is more important than another,” he said.
(Abridged from https:/www.militarytimes.com)
By reading the text, it is correct to infer that “full ride” in “He turned down a full ride to Ohio State University [...]" refers to a kind of:
Provas
Based on the text below, answer questions 1 and 2.
Marine receives rare heroism award for saving victim shot 23 times
[1] Issa, now 25, decided to become a Marine when he was 18, he said in an interview with Marine Corps Times on Tuesday. He turned down a full ride to Ohio State University because it didn't feel right to him to pursue the privilege of college without first serving overseas.
[2] In January 2023, Issa was serving with the infantry unit 3rd Battalion, 3rd Marines, at Marine Corps Base Hawaii. The night of the shooting, he and a fellow Marine had wrapped up dinner at Olive Garden and walked into a bar in the Waikiki neighborhood of Honolulu in search of a bathroom. They had been there for only a few minutes when the gunfire started.
[3] When Issa saw the gunmen, he initially thought they were trying to enter the bar. He rushed toward the pair, pushing a few people behind a table to cover them as he went. Then he realized the shooters were targeting someone on the sidewalk. "I just felt like I was on a range; Issa said. “I don't know if it was one of those blocks that I had from being in the Marine Corps infantry, but at the time I didn't feel like there was any danger associated with shooting, but I did feel like there was danger for the victim.”
[4] The two gunmen escaped, but one of them sporadically was shooting back at the victim as he ran away, Issa recalled. In those moments, the Marine exposed himself to the fire to attend to the victim.
[5] Issa relied on the casualty care simulations he had run through in training. He took off the victim's shirt and checked him for bullet wounds, of which there were several. Meanwhile, Issa felt a warm sensation on his knees, which were applying pressure near the victim's crotch to cut off the femoral artery. It was blood. Realizing that the victim's legs needed attention, Issa removed the flannel shirt from his own body and fashioned a makeshift tourniquet for the right leg. When two police officers arrived, Issa received from them a pair of real tourniquets that he used on the victim's legs.
[6] The case later was classified as second-degree attempted murder, the Honolulu Police Department told Marine Corps Times on Wednesday. No arrests were made, the police said, and the victim withdrew his complaint and did not want to prosecute.
[7] That night, Issa told his first sergeant that there had been a shooting, though he gave few details. But three Marine officers who happened to have been at the bar and witnessed Issa's actions informed his command, Issa said.
[8] On Feb. 19, Issa received the Navy and Marine Corps Medal from Navy Capt. Michael Puffer, the commanding officer of the Naval ROTC at the University of South Florida. The medal - the highest award for heroism outside of combat - recognizes service members who have taken heroic actions at the risk of their own lives. It's a rare honor.
[9] But, for now, Issa's medal is tucked away in a storage container. Issa said he means no disrespect to those who put in effort to secure him the recognition. It's just that he didn't want an award, because, in his view, what he did is just what anyone should try to do in that situation. "I don't think that any life is more important than another,” he said.
(Abridged from https:/www.militarytimes.com)
According to the text, it is correct to state that Issa:
Provas
Dada a equação diferencial ordinária x2+ y2 - 2.x.y.y= 0, a solução é:
Provas
Considere uma corda esticada ao longo do eixo x entre x=0 e x=L, A posição vertical da corda no ponto x e no tempo t é dada por u(x,t). A equação da onda unidimensional que descreve a vibração da corda é dada por \( \dfrac{d''u}{dt''} \) = c² \( \dfrac{d''u}{dx''} \) onde c é a velocidade da onda. Sabendo que u(x,t) = x3 - xt + 3t2, a velocidade c em função de x que a onda atingirá em t= 10s é:
Provas
Calcule a integral dupla ∫\( \int_{0,5n}^{1,5n}\left[\int_0^1\left(\cos\sec\ x\ +\ 2y\right)dy\right].\ dx \) e assinale a opção correta.
Provas
Assinale a opção que completa corretamente as lacunas das sentenças abaixo.
Considerando um arranjo de entrada de n números, o __________ é um algoritmo de ordenação cujo tempo de execução do pior caso é _______. Apesar desse tempo de execução lento no pior caso, o algoritmo, com frequência, é a melhor opção prática para ordenação, devido a sua notável eficiência na média, em que seu tempo de execução esperado é ______________.
Provas
Considere a matriz abaixo.

A matriz acima apresenta elementos no conjunto dos números complexos. Sendo n=| detA |2, então o valor da expressão \( \left[tg^2\pi n\ -\ \cos\ \left(\dfrac{\left(n-6\right)\pi}{250}\right)\ +\ 4\right]^3 \) é:
Provas
Uma máquina de Carnot opera entre duas fontes térmicas, cujas temperaturas absolutas são T1 e T2 (Kelvin), sendo T1 >T2. O rendimento da máquina é de 60 %, produzindo um trabalho igual à 30 J por ciclo. Mantendo-se constante a temperatura da fonte quente T1, deseja-se dobrar o rendimento da máquina, alterando-se a temperatura da fonte fria. Dessa forma, a variação percentual da temperatura T2, ou seja, (△T2/T2), é aproximadamente:
Provas
Caderno Container