Read the sentence from Anne Frank: The Diary of a Young Girl. We have finished our shorthand course; now we are beginning to practice speed. Which word is the best meaning of the word course in the sentence?

The word which is the best meaning of the word "course" in the sentence is:

According to the given sentence, we can see that the speaker talks about finishing her shorthand course which now enables them to proceed to practise speed and other things which would help them

As a result of this, we can deduce that the meaning of the word "course" is class as it shows that they were a group of students learning about a particular thing.

Therefore,  the correct answer is class.

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Class

Explanation:

I took the test

-138.23

Explanation:

The initial angular velocity = 4500 rpm

The final angular velocity = 1200 rpm

1 revolution = 2π radians

1 minute = 60 seconds

So,

Time = 2.5 seconds

Angular acceleration is:

Angular acceleration =- 138.23