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Umnica [9.8K]
3 years ago
8

Can someone explain this please? What are sound waves?

Chemistry
2 answers:
In-s [12.5K]3 years ago
5 0

Answer:

sound waves is what causes you and thing with be able to hears sounds and things

Aleks04 [339]3 years ago
5 0

Answer:

A wave of compression and rarefaction, by which sound is propagated in an elastic medium such as air

Explanation:

Sound waves are often simplified to a description in terms of sinusoidal plane waves which are characterized

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Vishwanath had some money. he spent 3 upon 4 part of money to buy goods for his birthday,1 upon 5 part of money give to his sist
lord [1]

Answer:

The correct answer is - 800.

Explanation:

Given:

Total amount = ? or assume x

spend in buying birthday item = 3/4 of x

given to sister = 1/5 of x

remaining to mother = 40

solution:

the remaning amount = x- (3x/4+x/5) = 4=

=> x- 19x/20 = 40

=> x = 20*40

=> x = 800

thus, the correct answer is = 800

8 0
2 years ago
If these teams are pulling with the same amount of force what will happen?
Usimov [2.4K]
They will not move...
3 0
2 years ago
Which type of power generation has resulted in raising the levels of the green house effect ?
Eduardwww [97]
A....fossil fuels!
hope this helps!!
3 0
3 years ago
Read 2 more answers
The half-cell is a chamber in the voltaic cell where one half-cell is the site of the oxidation reaction and the other half-cell
marysya [2.9K]

Answer:

\boxed{\rm \text{Fe(s) $\rightleftharpoons$ Fe$^{2+}$(aq) + 2e$^{-}$}}

Explanation:

The half-cell reduction potentials are

Ag⁺(aq) +   e⁻ ⇌ Ag(s)     E° =  0.7996 V

Fe²⁺(aq) + 2e⁻ ⇌ Fe(s)     E° = -0.447    V

To create a spontaneous voltaic cell, we reverse the half-reaction with the more negative half-cell potential.

The anode is the electrode at which oxidation occurs.

The equation for the oxidation half-reaction is

\boxed{\rm \textbf{Fe(s) $\rightleftharpoons$ Fe$^{2+}$(aq) + 2e$^{-}$}}

4 0
3 years ago
Which explains the information needed to calculate speed and velocity?
USPshnik [31]

Answer:

Both require time, but velocity requires displacement and speed requires distance

Explanation:

For calculating speed we require time and distance because speed is defined as the distance per unit time and as speed is a scalar quantity it does not have any direction

But for calculating the velocity we require time as well as displacement because velocity is defined as the displacement per unit time and as velocity is a vector quantity it has direction

Displacement is the shortest distance between the initial position and the final position and it has a specified direction as well

8 0
3 years ago
Read 2 more answers
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