3 years ago

Friction is a force that ___ or works against motion

Physics

1 answer:

Usimov [2.4K]3 years ago

4 0

Answer:

resists

Explanation:

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You break a piece of Styro foam packing material, and it releases lots of little spheres whose electric charge makes them stick

stich3 [128]

Answer:

The magnitude of charge on each sphere is $q=2.50\times 10^{-8}\ C$ .

Explanation:

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$F=\dfrac{kq^2}{r^2}$

$q=\sqrt{\dfrac{Fr^2}{k}}$

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3 years ago

EASY BRAINLIEST PLEASE HELP!!

jeka94

Answer:

Solution given:

frequency[f]=60,500,000Hz

velocity[V]=300,000,000m/s

wave length=?

we have

wave length= $\frac{V}{f}$

= $\frac{300,000,000}{60,500,000}$

= $\frac{3000}{605}$ =4.96 m

Option A.4.96m

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