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3 years ago

5

a book is sitting still on your desk. are the forces acting on the book balanced or unbalanced? explain.

2 answers:

GrogVix [38]3 years ago

8 0

<span>They are balanced. If the forces were not balanced the book would move*. In this example, the downward force of gravity on the book is counterbalanced by the upthrust of the desk. </span>

fgiga [73]3 years ago

4 0

The answer to this is balanced. Remember the downward force of gravity on the book is counterbalanced by the upthrust of the desk. Note that moving objects can also have balanced forces acting on them. if an object is moving at a constant speed, the force acting on it are balanced. It they are unbalanced the object would either accelerate or decelerate.

Hope this helped. <span />

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Answer:

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Explanation:

It is given that,

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We need to find the radius of the toroid. The magnetic field at the center of the toroid is given by :

$B=\dfrac{\mu_oNI}{2\pi r}$

$r=\dfrac{\mu_oNI}{2\pi B}$

$r=\dfrac{4\pi \times 10^{-7}\times 6\times 9.6}{2.2\pi \times 2\times 10^{-3}}$

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or

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So, the radius of the toroid is 0.00523 meters. Hence, this is the required solution.

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An electric field of magnitude 2.35 V/m is oriented at an angle of 25.0° with respect to the positive z-direction. Determine the

zzz [600]

Answer:

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Explanation:

Given that,

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Using formula of the magnetic flux

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Hence, The magnitude of the electric flux is $3.53\ N-m^2/C$

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