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bixtya [17]
3 years ago
7

Which Si units are combined to describe energy?

Physics
1 answer:
Aleks04 [339]3 years ago
8 0

Explanation:

The SI unit for energy is Joules.  In base units:

1 J = 1 N·m = 1 kg·m²/s²

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3 years ago
Calculate the missing variable....
OlgaM077 [116]

Answer:

option b

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What does x repressent on a motion map?​
Gnoma [55]

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3 years ago
Read 2 more answers
A book falling to the floor is best described by: law one, law two, law three, or all three laws?
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The book falling to the floor is described by Newton's second law and Newton's third law

Explanation:

Newton's first law of motion states that:

"An object moving at constant velocity (or at rest) keeps moving at constant velocity (or will stay at rest) unless acted upon unbalanced, external forces"

For a book falling to the floor, there is an unbalanced force acting on it (the  force of gravity): therefore, we cannot apply Newton's first law.

Newton's second law of motion states that:

"The net force acting on an object is equal to the product between the object's mass, m, and its acceleration, a"

Mathematically:

F=ma

For the book falling to the floor, F is the force of gravity; therefore, we can apply Newton's second law, and in this case it tells us that the book has a non-zero acceleration during its fall.

In particular, the force of gravity is F=mg (where g is the acceleration due to gravity), so the acceleration of the book is

mg=ma\\a=g=9.8 m/s^2

Newton's third law of motion states that:

"When an object A exerts a force (action force) on an object B, then object B exerts an equal and opposite  force (reaction force) on object A".

In this case, the Earth is exerting a  force (the force of gravity) on the book during its fall: therefore, the book is also exerting a equal and opposite force (reaction force) on the Earth.

Learn more about Newton laws of motion:

brainly.com/question/3820012

brainly.com/question/11411375

#LearnwithBrainly

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3 years ago
The acceleration of a vertically thrown ball at the top of its path is?
ser-zykov [4K]
C between zero and g
5 0
2 years ago
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