In the early days of rocketry, some people claimed that rockets couldn't fly in outer space as there was no air for the rockets to push against. Suppose you were an early investigator in the field of rocketry and met someone who made this argument. How would you convince the person that rockets could travel in space? Explain in detail.
Universal Law of Gravitation:
According to the universal law of gravitation by Newton, the attractive force between two objects in the universe is proportional to the product of two masses and is inversely proportional to the square of the distance between two objects.
Answer and Explanation:
I will try to explain the concept of gravity. I will let them think about the highest reachable point when throwing some objects on the earth. Of...
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from Physics: High SchoolChapter 7 / Lesson 6