2 years ago

What provides the vertical force to balance the force of gravity on the pendulum bob?

Physics

1 answer:

Zepler [3.9K]2 years ago

7 0

Answer:

the string and metre rule

Explanation:

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This force can either push the block upward at a constant velocity or allow it to slide downward at a constant velocity. The mag

sweet-ann [11.9K]

Answer:

Explanation:

Given

coefficient of kinetic friction $(\mu _k)$ =0.34

inclination $\theta =44$

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(a) When block is moving upward friction force acts downward

thus

$Fsin\theta -W-f_r=0$

as block is moving with constant velocity thus $F_{net}$ is zero

$f_r=\mu _kN=0.34\times Fcos\theta$

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(b)When Block slides down the wall friction changes its direction to oppose the block

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$F\left ( \sin \theta +\mu \cos \theta \right )=W$

$F=\frac{W}{\left ( \sin \theta +\mu \cos \theta \right )}$

$F=\frac{51}{0.939}=54.299 N$

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A very bright source of red light has much more energy than a dim source of blue light. which of these light sources has the bes

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The equation NaCl →Na +Cl is a ______ reaction. A. decomposition B. single displacement C. synthesis

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