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4 years ago

What determines the phase of a substance? temperture, humidity, amount of the substance or pressure

Physics

1 answer:

Pani-rosa [81]4 years ago

4 0

Answer:

Temperature and pressure.

Explanation:

The phase of any substance is depend on the temperature as well as pressure. Because if the substance is change from its solid state to liquid means melting occur, we are going to increase its temperature at a particular pressure affect.

And humidity also change the pressure but we here consider the pressure so we can neglect the humidity.

The phase does not depend on the amount of substance the rate of change of phase is not change with respect to amount of substance.

Therefore, the phase of change of substance is depends on temperature as well as on pressure.

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4. Brian stands at the edge of a cliff and throws a stone horizontally over the edge with a

Verdich [7]

Answer:A).3.16 s B).56.92

A).12.5m/s

B).7.81m

Explanation:

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4 years ago

contractor will use a package emulsion having a specific gravity of 1.25 and relative bulk strength of 130 to open an excavation

tester [92]

Answer:

The burden distance is 7 ft

Solution:

As per the question:

Specific gravity of package emulsion, $SG_{E} = 1.25$

Specific gravity of diabase rock, $SG_{R} = 2.76$

Diameter of the packaged sticks, d = 3 in

Now,

To calculate the first trail shot burden distance, B:

$B = [\frac{2SG_{E}}{SG_{R}} + 1.5]\times d$

$B = [\frac{2\times 1.25}{2.76} + 1.5]\times 3 = 7.22$

B = 7 ft

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3 years ago

An electron in an atom's orbital shell, labeled X in the model below, released enough energy to move to a different orbital shel

Delicious77 [7]

Answer:

Lower energy shell which will be nearer to the nucleus.

Explanation:

When electron move from one energy level to another, an electron must gain or lose just the right amount of energy.

When atoms releases energy, electrons move into lower energy levels. The electrons in the shells aways from the nucleus have more energy as compared to the electrons in the nearer shells.

Electrons with the lowest energy are found closest to the nucleus, where the attractive force of the positively charged nucleus is the greatest. Electrons that have higher energy are found further away

7 0

3 years ago

Help for 50 points thank you

Korolek [52]

Answer:

Explanation:

A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. ... Therefore, the oscillating material does not move far from its initial equilibrium position. Mechanical waves transport energy. This energy propagates in the same direction as the wave.

4 0

3 years ago

Read 2 more answers

2. In contrast to Venus, the coldest temperature yet measured on the surface of

garik1379 [7]

Answer:

Explanation:

<u>Temperature Scales </u>

There are three temperature scales in the modern sciences: Fahrenheit, Celsius, and Kelvin. Fahrenheit temperature scale assigns the value 32 for the freezing point of water and 212 for the boiling point of water and divides that interval into 180 parts. Celsius scale has a similar reference, giving 0 to the freezing point of water and 100 for the boiling point of water. The conversion between them is as follows

$\displaystyle F=\frac{9}{5}C+32$

$K=C+273.15$

The coldest temperature yet measured on the surface of any body in the solar system is -235°C. Converting to Fahrenheit

$\displaystyle F=\frac{9}{5}(-235)+32=-391^oF$

$K=-235+273.15=38.15^oK$

4 0

3 years ago