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3 years ago

How can friction help you in your daily life?

2 answers:

6 0

Answer: friction can help you in many ways such as when you hit the brakes on your car or when you are washing your face

Explanation:

friction happens in just about everything you do

skad [1K]3 years ago

5 0

Friction help us us maintain our stability and prevents us from slipping. Friction also works the same way with cars and vehicles preventing them from skidding and helping them stop when the brakes are applied.

This is maybe too little.

Hope this helps though! C:

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A ray of light contains two colors: red with wavelength of 660 nm and blue with wavelength 470 nm. The ray passes through two na

densk [106]

Answer:

The distance on the screen between the first-order bright fringes for each wavelength is 3.17 mm.

Explanation:

Given that,

Wavelength of red = 660 nm

Wavelength of blue = 470 nm

Separated d= 0.30 mm

Distance between screen and slits D= 5.0 m

We need to calculate the distance for red wavelength

Using formula for distance

$y=\dfrac{\lambda D}{d}$

Where, D = distance between screen and slits

d = separation of slits

Put the value into the formula

$y=\dfrac{660\times10^{-9}\times5.0}{0.30\times10^{-3}}$

$y=11\ mm$

For blue wavelength,

Put the value into the formula again

$y'=\dfrac{470\times10^{-9}\times5.0}{0.30\times10^{-3}}$

$y'=7.83\ mm$

We need to calculate the distance on the screen between the first-order bright fringes for each wavelength

Using formula for distance

$\Delta y=y-y'$

$\Delta y=11-7.83$

$\Delta y=3.17\ mm$

Hence, The distance on the screen between the first-order bright fringes for each wavelength is 3.17 mm.

4 0

3 years ago

In this experiment, the

tigry1 [53]

Result of the other variable

6 0

3 years ago

Soils, forests, and minerals are among earth’s _____ resources.

stich3 [128]

Soils, forests and minerals are among earth's "Natural Resources".

7 0

3 years ago

Read 2 more answers

True false according to current atomic theory electrons are in fixed locations

Amanda [17]

That's false. According to current atomic theory and quantum mechanics, an electron is always PROBABLY SOMEWHERE in a fuzzy foggy area around the nucleus of the atom, and that's all we can ever say about it. There's no way to even TELL where the electron is, even if we had the technology to see things that small.

4 0

3 years ago

A sensitive gravimeter at a mountain observatory finds that the free-fall acceleration is 0.0055 m/s2 less than that at sea leve

pshichka [43]

Gs*rs^2 = gm*rm^2
rm = rs*√gs/gm 
rm = 6370*√9.83/(9.83-0.009) = 6372.92 
mountain observatory is placed at an altitude worth 2920 m asl

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7 0

3 years ago