A table exerts a 4.0 Newton force on a book which lies at rest on its top. The force exerted by the book on the table is

2 answers:

4 0

I believe the correct answer from the choices listed above is the third option. The force exerted by the book on the table is equal to the force exerted by the table which is 4.0 N. The book does not move so it must be that the forces are balanced. Hope this answers the question.

icang [17]3 years ago

3 0

Hello there.

A table exerts a 4.0 Newton force on a book which lies at rest on its top. The force exerted by the book on the table is

4.0 N

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The concrete slab of a basement is 11 m long, 8 m wide, and 0.20 m thick. During the winter, temperatures are nominally 17 C and

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Answer:

Q = - 4312 W = - 4.312 KW

Explanation:

The rate of heat of the concrete slab can be calculated through Fourier's Law of heat conduction. The formula of the Fourier's Law of heat conduction is as follows:

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Integrating from one side of the slab to other along the thickness dimension, we get:

Q = - kA(T₂ - T₁)/L

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where,

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T₂ = Temperature of Top Surface = 17° C

t = Thickness of Slab = 0.2 m

Therefore,