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3 years ago

In a solution, the substance that does the dissolving is called:

Physics

1 answer:

snow_tiger [21]3 years ago

7 0

C. Solvent

A solvent is a substance that can be dissolved. A solute is a substance dissolve in a solvent. Saturated is something where it holds as much of a substance as it can. Precipitate means it's evaporated.

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True or False? When a pot of water is heated on a stove, it will begin to bubble. This is a sign that there was a chemical react

Nata [24]

Answer:

False

Explanation:

Boiling water is not a chemical change it is a Physical change

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3 years ago

Read 2 more answers

A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave? Group of answer choices

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Explanation:

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3 years ago

There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hz that can travel u

amid [387]

Answer:

$L = 96.2 dB$

Explanation:

As we know that the level of intensity is given as

$\beta = 10Log(\frac{I}{I_o})$

here we know

$\beta = 104 dB$

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$I = 0.025 W/m^2$

now the sound is travelling in all possible directions so we have

$\frac{I_1}{I_2} = \frac{r_2^2}{r_1^2}$

$\frac{0.025}{I_2} = \frac{10^2}{4.1^2}$

$I_2 = 4.2 \times 10^{-3} W/m^2$

now for level of sound we have

$L = 10Log(\frac{4.2 \times 10^{-3}}{10^{-12}})$

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5 0

3 years ago

Sharon is driving on a straight road. She is driving north, and her speed is

sdas [7]

Answer:

Explanation:

b is the correct answer

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3 years ago

How many justified by Bohr model?

Dominik [7]

X-ray formation

Energy difference in the first ionization of the same group of elements

Differential linear emission spectra of different elements

Explanation:

The formation of x-ray, energy difference in the first ionization of the same group of elements and differential linear emission spectra of different elements can be justified by the Bohr model of the atom.

According to Neil Bohr, in an atom, the extranuclear part consists of electrons in specific spherical orbits around the nucleus.
Bohr's model explained the discrete lines in atomic spectrum of different elements.
Due to excitation of electrons, some rays are given off. Some of these are energetic like x-rays.
The energy difference between the first ionization of the same group of elements is a proof that electrons are in specific spherical orbits.
The higher the energy the level, the ease at which electrons can be removed and the lower the ionization energy.

Learn more:

Bohr model of the atom brainly.com/question/4986277

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4 years ago