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Nikolay [14]
2 years ago
6

2) Imagine that a loudspeaker is producing quiet note with a low pitch

Chemistry
1 answer:
makvit [3.9K]2 years ago
3 0

Answer:

Higher pitched sounds produce waves which are closer together than for lower pitched sounds. (Think of the slinky - if you produce waves rapidly they will travel quite close to each other, thus demonstrating a higher pitched sound.)

The pitch of a note will depend on a number of factors. One of these is the size of the vibrating object. On a glockenspiel or xylophone the high notes are made by the smaller bars. A smaller triangle or cymbal will make a relatively higher pitch note. On a stringed instrument such as a guitar or violin a thinner string will generally make a higher note, but also shortening the string by stopping it with the finger will produce a similar effect. On a set of pan pipes or a church organ it is the shorter pipes which make the higher notes when the air inside them vibrates.

Another factor which produces higher pitched notes is the tension within the vibrating object. A guitar string can be tuned to a higher pitch by adjusting the string tensioner. An elastic band can be stretched tighter and a drum skin can be tensioned to increase the pitch of the sound it produces.

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When atmospheric carbon dioxide reacts with water in the atmosphere, it forms carbonic acid. This acid can then react with some
Nastasia [14]

Answer:

The terms used to describe the given process in <em><u>Chemical weathering.</u></em>

Explanation:

Weathering of rock is defined as breaking down of the rock into small pieces.

There are two types pf weathering :

Mechanical weathering : This weathering is due to change in physical parameters : temperature change, pressure change etc.

For example : When water soaked up in cracks or crevices of rocks freezes it expands and physically breaks the rock.

Chemical weathering : This weathering is decomposition of rocks due to action of chemicals.This type of weathering also changes chemical composition of rocks.

For example : when gases like carbon dioxide, sulfur oxide get dissolves in water present in rock to form weak acid which ease up the dissolving of rock in that weak acid.

6 0
4 years ago
What are the end products of respiration
Greeley [361]
Respiration:
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4 0
3 years ago
Calculate the value of q (kj) in this exothermic reaction when 5.40 g of hydrogen peroxide decomposes at constant pressure?
Gelneren [198K]
Hydrogen peroxide decomposes to yield water and oxygen gas 
That is; H2O2 (l) = H2O (l) + O2(g)
The standard heat of formation; H2O2 (l) = -187.6 kJ/mol; H2O(l) = -285.8 kJ/mol
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Thus, 5.4 g contains 5.4/34 = 0.1588 moles 
The moles of water produced will also be equivalent to 0.1588 moles 
Heat = heat of formation of product - reactant
Therefore; Heat = (0.1588 moles × -285,8 )- (0.1588× -187.6)
                           =  -15.594 kJ
6 0
3 years ago
when we drop a feather and a stone at the same time from a height the stone reach the faster than a feather
Romashka [77]

Answer:

See explanation

Explanation:

When an a heavy object and a light object are thrown down from the same height, the two objects are expected to hit the ground at the same time since the two objects are both accelerated to the same extent (approximately 10m/s^2) under gravity.

However, due to air resistance, the heavier object reaches the ground first before the lighter object.

Hence, when we drop a feather and a stone at the same time from a height the stone will hit the ground faster than the feather.

8 0
3 years ago
How many protons, neutrons, and electrons are in Potassium, Nitrogen, and oxygen?
pickupchik [31]
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3 0
3 years ago
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