CHEMISTRY MIDDLE SCHOOL

Why does a noise sound fainter as you move away from its source?

Answers

Answer 1

Answer:

Answer:

Uhh..Because as you get farther away then you cant hear the sound waves i think

Explanation:

Answer 2

Answer:

Answer:

because the sound waves can only travel so far and if there is things near the source the waves bounce off of it. Ex: the speaker in the class room wouldn't be quiet, its like the noise went away as i walked down the halls, maybe the walls were blocking the noise

Explanation:

Related Questions

What is true for the energy involved in an explosion?There is more energy at the end of the explosion than there is at the beginning. There is less energy at the end of the explosion than there is at the beginning. There is the same amount of energy at the end of the explosion than there is at the beginning.<<<My answer The amount of energy before and after the explosion depends on the type of reaction.Can someone please check it?
Changing the number of protons in an atom makes A. an ion B. an isotope
238,2U --> 234Th +90
Which form of cellular respiration takes over so the deer may run a while longer
Why do we put these three words together in the 'fire triangle'?

Please help me with this question!!! On the link that I have attached there are 6 pages scroll down to the 5th page because I need help with number one and number three.I am really confused.
25 points for this question

Answers

Ok so the gravitational force the moon exerts on earth is very small. The ocean, however, is affected by it. How gravity works (in a simplistic sense) is that, when you are closer to something, the force is stronger. So, when the moon is close to Earth (at Perigee) the force of gravity is stronger. So the moon pulls the water more towards itself. This results in higher waves occurring when the moon is closer (at perigee) than at apogee.

What element is in group 13 and period 2 of the periodic table?

Answers

Answer:

Boron

Symbol:

Final answer:

Boron, symbolized as 'B', is the element located in group 13 and period 2 of the periodic table. It has 3 valence electrons and two shells.

Explanation:

The element in group 13 and period 2 of the periodic table is Boron. In the periodic table, columns represent groups while rows represent periods. The group number corresponds with the number of electrons in the outer shell and the period number represents the number of shells that an atom of the element has. So, an element in group 13 would have 3 valence electrons and in period 2 indicates it has two shells. Therefore, the element is Boron (symbol B).

Learn more about Periodic Table here:

brainly.com/question/31672126

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Earthquakes are caused by a sudden release of stress when pieces of the Earth's crust shift past each other along a fault. Which of the following could be caused by this sudden shift or its associated earthquake?
A. the triggering of a landslide
B. the collapse of a building
C. the initiation of a tsunami
D. all of these

Answers

D all of the above because a tsunami is caused by disturbance in the water, the building collapsing is because of the tension in the ground, and of course the landslide was triggered because of the friction and tearing.

for all of my study island friends the answer is D. all of these

What is the mass of a bacterial cell?

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Thus, it was found that the intestinal microbiota has approximately 100 trillion bacterial cells - about ten times more than the total number of cells in the human body.

100 trillion bacteria cells

Ethanol contains the elements carbon, hydrogen, and oxygen. When ethanol burns, it chemically reacts with oxygen gas.C2H6O + O2
ethanol oxygen gas

What elements will be present in the substances that are created when ethanol burns?
A.
nitrogen, sulfur, and sodium only
B.
carbon, hydrogen, and oxygen only
C.
the elements cannot be determined
D.
carbon and hydrogen only
correct answer is B I answered my own question! lol

Answers

Answer: The correct answer is Option B.

Explanation:

Every balanced chemical equation follows law of conservation of mass. This law states that mass can neither be created nor be destroyed but it ca only be transformed from one form to another form.

In a chemical reaction, total number of individual atoms on the reactant side must be equal to the total number of individual atoms on the product side.

During a chemical reaction, the atoms on the reactant side must also be present on the product side.

For the given reactants, the chemical equation will follows:

$2C_2H_6O+6O_2\rightarrow 6CO_2+6H_2O$