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3 years ago

A book is sitting on a desk. what best describes the normal force acting on the book

Physics

2 answers:

Margarita [4]3 years ago

7 0

the upward force the desk pushes on the book.

from the free body diagram of the book, it is clear that on the book, there are two forces acting.

1) normal force F by the desk in Upward direction.

2) force of gravity by earth in downward direction.

The Upward normal force by the desk on the book balances the force of gravity by earth in downward direction. that is why the book remains stationary on the desk.

blsea [12.9K]3 years ago

4 0

The forces acting upon the book are shown below. The force of gravity pulling downward and the force of the table pushing upwards on the book are of equal magnitude and opposite directions. These two forces balance each other.

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2 years ago

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2 years ago

name three sources of energy that can be absorbed by atoms to produce light. which source is used in bioluminescent organisms?

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Explanation:

Heat energy

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Solar energy can be absorbed by organisms to produce light. Such an example is bioluminescence in some organisms. During the day, they trap solar energy that they glow with at night.

Electrical energy can also be used to produce light. We often see this in lightning and electrical bulbs in a circuit.

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Human eye and visible light brainly.com/question/5305525

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2 years ago

Explain why a golf ball has a higher density than a ping pong ball, even though they are similar in size and shape.

Andrej [43]

Answer:

The ping pong ball is hollow.

Explanation:

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3 years ago

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kondaur [170]

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2 years ago