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DedPeter [7]
3 years ago
15

Sound is created through vibrations in the air which causes the auditory sensation in your ear – making you able to hear the noi

ses that we do. Sound produced by different sources have different characteristics like amplitude , wavelength and frequency. Analyze the diagrams to answer the following questions with suitable reasons. (A)Which represents the highest pitched sound?. Give reason.

Chemistry
1 answer:
Pachacha [2.7K]3 years ago
6 0

Answer:

The answer is A

Explanation:

A had higher frequency and higher the frequency of an object the higher its pitch still be

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Which of these is a physical property?
Crazy boy [7]

Answer:

malleable

Explanation:

able to be bended into shape

5 0
4 years ago
Read 2 more answers
two perfumes A and B were released at the same time and you are standing 7.5metres away from both of them.molarmass of perfume A
kifflom [539]

17.40 sec is the time will take to smell second perfume after diffusion takes place

Acc. to Graham's law of Diffusion

Diffusion of Gas inversely proportional to square root of its Molecular mass.

<u>rb (Perfume B)</u>

ra(perfume A)

= \sqrt{\frac{Ma}{Mb} } its equation (1)

Give molar mass of Perfume A = 275 g/mol

molar mass of Perfume B= 205g/mol putting value in (1)

» \frac{rb}{ra}=\sqrt{\frac{275}{205} }

\frac{rb}{ra} =1.16<em> its eq (2)</em>

» Perfume B will defuse 1:16 times faster than perfume A.

Hence, perfume B will be first smelled by Person.

Sf Equal volume V of two goes diffuse in t1 and t2 sec. respectively ton

\frac{ra}{rb}=\frac{tb}{ta}

Now,, from eq(2) toto

1/1:15 = \frac{tb}{ta}

ta

Given tb =the smell of Perfume B as it diffuse faster  

ta= 1.15 x 15 see  

=ta2=17.40 sec

Learn more about diffuse here

brainly.com/question/3266850

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4 0
1 year ago
When CO(g) reacts with O2(g) according to the following reaction, 283 kJ of energy are evolved for each mole of CO(g) that react
marissa [1.9K]

Answer:

2CO + O₂    →  2CO₂     ΔH = -566 kj

Explanation:

Given data:

Energy evolved when 1 mole of CO react = 283 Kj

Energy evolved when 2 mole of CO react = ?

Solution:

Chemical equation:

2CO + O₂    →  2CO₂    

It is given when one mole of CO react with oxygen 283 KJ energy is produced.

When 2 mole react,

2 ×-283 kj = -566 kj

Thermal equation:

2CO + O₂    →  2CO₂     ΔH = -566 kj

8 0
4 years ago
Type your answer in decimal form. Do not round.<br> 7 days = hours
djyliett [7]
168.0
Hope this helps u
5 0
3 years ago
Read 2 more answers
Why this chemical equation 3P4 + 10O2 = 4P2O5 + P4 is wrong?
ad-work [718]

Because it can be balanced in an infinite number of ways so it would need to be rewritten in a simpler form.

6 0
3 years ago
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