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Ganezh [65]
3 years ago
9

Ahmed kept a balloon from his birthday for several days until it began to deflate and slowly sink to the ground. He wondered how

the balloon was losing its ability to float. He decided to use his Physical Science textbook to get more answers. What chapter should Ahmed read to learn more about how things function or behave?
Physics
2 answers:
goldfiish [28.3K]3 years ago
8 0
<span>He should study the chapter about laws to get a better understanding about the laws that govern physical objects</span>
astra-53 [7]3 years ago
6 0

Answer:

He should study the chapter about laws to get a better understanding about the laws that govern physical objects.

Explanation:

Small light atoms can diffuse through tiny pores in stretched rubber much more easily than larger heavier molecule. However, helium balloons don't completely deflate when helium atoms diffuse out of the balloon, because some air molecules also move into the balloon.  

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Light with a wavelength of about 490 nm is made to pass through a diffraction grating. the angle formed between the path of the
polet [3.4K]

The number of lines per mm in the diffraction grating is 326.

<h3>What is diffraction grating?</h3>

A diffraction grating is a type of optical instrument obtained with a continuous pattern. The pattern of the diffracted light by a grating depends on the structure and number of elements present.

The given data in the problem is

\rm \theta is the angle formed between the path of the incident light and the diffracted light = 9. 2°

λ is the wavelength of the light=490nm=4.9

N is the number of lines per mm in the diffraction grating=?

n is ordered = 1

The formula for the diffraction grating is;

n \lambda = d sin\theta \\\\ d = \frac{n \lambda}{sin \theta } \\\\  d = \frac{1 \times 4.90 \times 10^{-7}}{sin 9.2^0 } \\\\ d=3.06 \times 10^{-6} \\\\ d=3.06 \times 10^{-3} \ mm

The number of lines per mm is found as;

\rm N= \frac{1}{d} \\\\ N= \frac{1}{3.06 \TIMES 10^{-3}} \\\\ N=326.8 /mm

Hence the number of lines per mm in the diffraction grating is 326.

To learn more about diffraction grating refer to the link;

brainly.com/question/1812927

5 0
2 years ago
A car increased its velocity to 62m/s in 10s starting from rest. Calculate the distance it covers during this time?
Roman55 [17]

Answer:

distance= velocity ×time

distance= 62×10

distance=620m

hope it helps you mate please mark me as brainliast

6 0
3 years ago
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