( ) What would happen if there were no air?A.We would hear nothing at all.B. Sound would travel very slowly.C.There would be a strong windD. Cars would run very slowly 相关知识点: 试题来源: 解析 A 在真空中没有空气作为介质,声音无法传播,因此人类将无法听到任何声音。分析各选项:A. ...
If Earth suddenly stopped spinning, it would be catastrophic. (Image credit: AerialPerspective Works via Getty Images) Even though Earth is always spinning, we can't feel it, and you probably take it for granted. But what would happen if it stopped? If Earth suddenly stopped spinning, it...
If an object could reach the speed of light, it would become infinitely massive and would require infinite energy to maintain that speed. Related Stories: — How long could you survive in space without a spacesuit? — What would happen if Earth stopped spinning? — How does light slow down...
—What would happen if you fell into a black hole? —Why does outer space look black? Such a scenario isn't as absurd as it sounds. In fact, Schultz said scientists at one point were considering setting up such a self-hit in space in order to investigate the effects of high-speed ...
A. would be happenedB. would happenC. happenedD. happen20. If the sun___ rise in the west, my love for you would be changed one day.A. willB. wereC. were toD. shall 相关知识点: 试题来源: 解析 19. B 20. C 19. 答案:B 该句为与现在事实相反的虚拟语气,从句用一般过去时,主句用...
If a person had the power of electricity, what would happen if they showered?Energy cannot be lost or created, so what happens to human life after death?When a guitar is tuned, what is it that is changed?What happens when the axis of a bar magnet is placed along the magn...
She turned up at the doorstep of my house in Cornwall.No way could I have sent her away.No way,not me anyway.Maybe someone had kicked her out of their car the night before."We're moving house.""No space for her any more with the baby coming.""We never really wanted her,but wha...
if you attached some kind of pump to the bottom of the straw to make it have a higher pressure than sea-level, then you could pump air up the straw and have some kind of massive space-fountain of air (the air coming out would fall back to ...
728.Their project got stuck. However, Tu Youyou would not acknowledge defeat. 他们的项目陷入了僵局。然而,屠呦呦并不认输。 729.She analysed the medical texts again, and by chance, she found one sentence suggesting a ...
that would include a lot of hard acceleration, making the trip quite uncomfortable. We don't know yet if this application would require the Super Heavy first stage. If it does, that would limit the locations SpaceX could launch and land the vehicle. Thedamage to SpaceX's Boca Chica facili...