2 years ago

Please solve it asap ty!

Physics

1 answer:

vodomira [7]2 years ago

8 0

Answer:

thanks for the five points

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Approximately how many atoms are there along a 9.5 cm line

uranmaximum [27]

First convert 5.5 cm to meters.

(5.5 cm / 1) x (m / 100 cm) = 0.055 m

A typical atom is about 1.0E-10 m in diameter; thus:

0.055 m / 1.0E-10 m = 5.5E8 atoms or 550,000,000 end-to-end atoms in 5.5 cm

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How long does it take light from the sun to reach earth?

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What is the kinetic energy of a 0.135 kg baseball thrown at 40 m/s

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KE = 1/2 * m * v^2
KE = 1/2 * 0.135 * 40^2
KE = 1/2 * 0.135 * 1600
KE = 108 J

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2 years ago

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zloy xaker [14]

3 is 3.81 meters

4 is 0.47 liters

5 is 4 cm

6 is 23 mm

7 is 53 m

8 is 1800 mg

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6 0

3 years ago

Monochromatic light of wavelength, lambda, is traveling in air. The light then strikes a thin film having an index of refraction

kumpel [21]

Answer:

The correct option is H

Explanation:

From the question we are told that

The index of refraction of coating is $n_1$

The index of refraction of material is $n_2$

Generally the condition for constructive for a thin film interference is mathematically represented

$2 * t = [ m + \frac{1}{2}] \frac{\lambda}{n_1 }$

Here t represents the thickness

For minimum thickness m = 0

$2 * t =0 + \frac{1}{2}\frac{\lambda}{n_1 }$

=> $t =\frac{\lambda}{4n_1 }$

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2 years ago