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3 years ago

Write a use of magnetic force and frictional force each

1 answer:

7 0

Magnetic force:Computer hard drives use magnetism to store the data on a rotating disk. More complex applications include: televisions, radios, microwave ovens, telephone systems, and computers. ... Frictional force:Quite often uses of friction can be seen from how things would be without friction.

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Seismic waves carry energy from earthquakes through the earth's crust. Seismic waves are...

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3 years ago

Light travels at 3. 0 × 108 m/s in a vacuum and slows to 2. 0 × 108 m/s in glass. What is the index of refraction of glass?.

Sergio039 [100]

The required value of the index of refraction of glass is 1.5.

Given data:

The speed of light in a vacuum is, $c = 3.0 \times 10^{8} \;\rm m/s$ .

The speed of light in a glass is, $v = 2.0 \times 10^{8} \;\rm m/s$ .

Light has the tendency to travel from one medium to another, then the difference between the speeds of light in various mediums is determined by a term, known as the index of refraction. The mathematical expression for the index of refraction of glass is,

n = c / v

Solving as

$n = \dfrac{3.0 \times 10^{8}}{2.0 \times 10^{8}}\\\\n = 1.5$

Thus, we can conclude that the required value of the index of refraction of glass is 1.5.

Learn more about the index of refraction here:

brainly.com/question/17156275

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2 years ago

Click through the images and select the model that best shows how J.J. Thomson envisioned the atom.

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Answer:

The first one with the big plus in the middle and negatively charged electrons around.

Explanation:

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3 years ago

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3 years ago

Write a use of magnetic force and frictional force each​

Write a use of magnetic force and frictional force each