Answer:
Centre of mass is the point at which the distribution of mass is equal in all directions, and does not depend on gravitational field. Centre of gravity is the point at which the distribution of weight is equal in all directions, and does depend on gravitational field.
Explanation:
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With a diameter that's 11 times larger than Earth's, Jupiter is the largest planet
Answer:
the speed of something in a given direction
Explanation:
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Hey there!
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An object's velocity can be described by its speed and acceleration.
This statement is true
Hope this helps
Have a great day (:
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Answer:
n=2.053
Explanation:
We will use Snell's Law defined as:
Where n values are indexes of refraction and 
values are the angles in each medium. For vacuum, the index of refraction in n=1. With this we have enough information to state:
Solving for 
yields:
Remember to use degrees for trigonometric functions instead of radians!
