Know what your gonna write about and be organized
Answer:
Dr Hewitt is able to break the piece of wood in his demonstration given that he had knowledge about the concept of momentum, which is esentially the product of the mass and speed of an object.
Aplying this idea, he used the correct momentum of his hand over a short period of time and that is how he was able to break the piece of wood.
<u>Answer:</u>
Stop [!] the train is approaching.
<u>Explanation:</u>
The punctuation should be an exclamation point because it used at the end of a sentence or a short phrase which expresses very strong feeling.
<em>Hoped this helped.</em>
