1.Today I drove 125 miles in 110 minutes.What was my` average speed in miles per hour?(There are 60 minutes in one hour)(能不能帮我列出完整的式子)2.Light travels through space at a constant speed of 3X10⁸m/s.What is the acceleration

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1.Today I drove 125 miles in 110 minutes.What was my` average speed in miles per hour?(There are 60 minutes in one hour)(能不能帮我列出完整的式子)2.Light travels through space at a constant speed of 3X10⁸m/s.What is the acceleration
1.Today I drove 125 miles in 110 minutes.What was my` average speed in miles per hour?(There are 60 minutes in one hour)
(能不能帮我列出完整的式子)
2.Light travels through space at a constant speed of 3X10⁸m/s.What is the acceleration of a beam of light?
3.what is the acceleration of a car if it begins at 100km/h and comes to a stop after 8 seconds?you may write your answer with the units of km/h/s.In what direction is the car's acceleration (in the same direction or opposite direction of the car's motion)?
希望可以讲得详细一些,

1.Today I drove 125 miles in 110 minutes.What was my` average speed in miles per hour?(There are 60 minutes in one hour)(能不能帮我列出完整的式子)2.Light travels through space at a constant speed of 3X10⁸m/s.What is the acceleration
1、Today I drove 125 miles in 110 minutes.What was my` average speed in miles per hour?(There are 60 minutes in one hour)
Ans：average speed v=total course/time cost=125/(110/60)≈68.18 miles/hour
2、Light travels through space at a constant speed of 3X10⁸m/s.What is the acceleration of a beam of light?
Ans：Since the speed of a beam of light is a constant,the acceleration is zero(0).
3、what is the acceleration of a car if it begins at 100km/h and comes to a stop after 8 seconds?you may write your answer with the units of km/h/s.In what direction is the car's acceleration (in the same direction or opposite direction of the car's motion)?
Ans:the acceleration a=(0-100)/8=-12.5km/h/s
where "-" suggests that the acceleration is opposite the direction of the car's motion.

1:
Conversion of Time: 110 Minutes = 110/60 = 11/6Hours
Average Speed = 125Miles/11/6Hours =68 Miles per Hour.
(This is not a physical question)
2: The acceleration is Zero for...

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1:
Conversion of Time: 110 Minutes = 110/60 = 11/6Hours
Average Speed = 125Miles/11/6Hours =68 Miles per Hour.
(This is not a physical question)
2: The acceleration is Zero for the speed of Light is constant and stable, there is no speed variation.
3: As the question told you, you can use the unit of km/h/s, That means you can use the speed variation and the time directly without a conversion:
The acceleration = (0km/h - 100km/h) / 8 seconds = -12.5km/h/s and this result means that the acceleration is not in the same direction in which the car is heading.
Over.

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1.Today I drove 125 miles in 110 minutes.What was my` average speed in miles per hour?(There are 60 minutes in one hour)(能不能帮我列出完整的式子)2.Light travels through space at a constant speed of 3X10⁸m/s.What is the acceleration 动名词放句首“why were you so late for work today?”_____to the office was very slow this morning because of the trafficA.Driving B.To drive C.I drove D.That I drove 1 I heard from him yesterday 2 My father drove me to school today 3 He has a sister called Mary的中文意思第三个不用 A：why were you so late for the meeting today?A：why were you so late for the meeting today?B：_____ to the office was very slow this morning because of the traffic.A.Driving B.I drove “Why was Fred so upset?”“He isn't used ____ criticized.”45.“Why were you so late for work today?”“____ to the office was very slow this morning because of the traffic.” A.Driving B.I drove C.To drive D.That I drove 这个怎么选,为 I took him to the cinema.1.I took him to the cinema.Whom did you took to the cinema?that man?Yes,he's the man that I took to the cinema.2.I drove her to London.Whom did you drove to London?That girl?Yes,she's the girl I drove to London.这个是我 I drove it into a lamp post的it为什么在drove之后into之前 I drove it into a lamp-post的语法drove和into有什么联系 英语翻译As it was getting darker,I drove slowly 短文改错 Today I visited the Smaths-my first短文改错 Today I visited the Smaths-my first time visit to a American family,They live in a small town.It was very kind for them to meet me at the railway station and drove me to their home. I drove on to the next town,中的drove on能改成drove to吗句子：I drove on to the next town.与句子：I drove to the next town.意思相同吗?原句为：After I had left a small village in the south of Franch,I drove on to the next town. 1.I ( ) a sandwich every day.2.I ( ) fun today I drove on to the next town,中的drove on是不是一个短语.能不能把on to 连在一起成onto today,i am very i feel like today I really enjoy ( ) today. I'm nine today. ______to the office was very slow this morning because of the traffic.A.driving B.That I drove“why were you so late for work today?”_____to the office was very slow this morning because of the trafficA.driving B.That I droveB为什么不对,