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4 years ago

8

The electromagnetic interaction _______.A. applies only to charges at rest B. applies only to charges in motion C. is responsibl

e for sliding friction and contact forces D. all of the above E. none of the above

1 answer:

Bond [772]4 years ago

8 0

Answer:

C. is responsible for sliding friction and contact forces

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3 years ago

A 0.305 kg book rests at an angle against one side of a bookshelf. The magnitude and direction of the total force exerted on the

tankabanditka [31]

Answer

given,

$F_L= 1.52\ N$

$\theta_L= 31^0$

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so, from the diagram attached below

$F_L cos {\theta_L} + F_b sin {\theta_b} = m g$

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$cos {\theta_b} = \dfrac{F_L sin {\theta_L}}{F_b}$

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