一道物理英文题The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by v = (–5.00 × 107)t2 + (3.00 × 105)t,where v is in meters per second and t is in seconds.The acceleration of the bullet just as it l
(六) A maglev(磁悬浮) bullet train that can reach a speed of 600kilometers per hour (373 miles per hour) has made its debut in Qingdao, China.1. _Developed_ (develop) by the state-owned Chin a Railway Rolling Stock Corporation, it's considered the world's2. fastest (fast) train.Lia...
a她的名字呢? Her name?[translate] aa bust mode that can shoot at a top speed of 7 frcemes per second 可能射击以7 frcemes的最高速度每秒的胸像方式[translate]
magnetic trains don't even touch the tracks.Modern trains called bullet trains , with new powerful engines , now travel at speeds of nearly 320 kilometers per hour ( 200 mph ) .There are plans for even faster
A video about Chinese high-speed railway aroused a heated discussion on the Internet. In this video, a Swedish man 1 a coin upright on the surface of the windowsill(窗台) of a bullet train running at 300 kilometers per hour.Surprisingly, the coin remained 2 for up to eight minutes and...
We are given: {eq}\bullet \; v=25.00 \;\rm m/s {/eq}, the constant velocity of the car. {eq}\bullet \; \Delta t =2 \;\rm h {/eq}, the time...Become a member and unlock all Study Answers Start today. Try it...
Answer to: A 10 \ kg gun recoils with a speed of 0.1 meter per second as it fires a 0.001 \ kg bullet. What is the speed of the bullet as it...
“at the speed of”用于描述事物或动作的具体速度或象征性速度,可搭配不同单位或用于比喻语境。以下是其核心用法和场景的详细说明: 一、基本结构与语义 该短语的核心结构为 “at the speed of + 数值 + 单位”,表示“以……的速度”。例如:“The car travels at the sp...
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A train travels at the rate of 120 km per hour what is its speed in meters per minute? 120 km/hr (1000 meters/1 km)(1 hr/60 minutes) = 2000 meters per minute --- A train approaching a crossing changes speed from 25 meters per second to 10 meters ...