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kakasveta [241]
3 years ago
6

Faiyez wrote the problem below

Physics
1 answer:
Ilya [14]3 years ago
6 0

445/100 - 5/4 = 445/100 - 125/100 = 320/100 = 16/5 = 3 1/5.

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Which of the following statements is true? The melting and freezing points of a substance are the same. The melting and boiling
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<span>The melting and freezing points of a substance are the same.

Substances melt and freeze at the same temperature. Hope this helps! :)</span>
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3 years ago
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Which New York State landscape region is mostly composed of horizontal sedimentary bedrock at high elevations?A. Hudson Highland
Gnesinka [82]

Answer: B. Allegheny plateau

Explanation: Allegheny plateau is a mountainous region that makes up the northern part of the United States of America, the following states are located on the Allegheny plateau New York, Pennsylvania, West Virginia and Ohio, it is made up of HORIZONTAL SEDIMENTARY BEDROCK at elevated lands. Allegheny plateau is over 40million area is over 40million acres,it has been a site for Erosion and for millions years,through this erosions some areas have been brought low while others are higher following the deposition of materials by the erosion.

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3 years ago
A person who weighs 509,45 N empties her lungs as much as
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Answer:

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From Archimedes principle,

R.d = Density of the person/Density of water = Weight of the person in air/Upthrust.

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Where D₁ = Density of the person, D₂ = Density of water, W = Weight of the person in air, U = Upthrust in water.

Making D₁ the subject of the equation,

D₁ = D₂(W/U)................................... Equation 2

<em>Given: D₂ = 1000 kg/m³ , W = 509.45 N, U = lost in weight = weight in air - weight in water = 509.45 - 22.34 = 487.11 N</em>

<em>Substituting these values into equation 2</em>

D₁ = 1000(509.45/487.11)

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Thus the weight of the girl = 1045.86 kg/m³

<em></em>

7 0
3 years ago
You are designing an optical fiber scope for directing light into a confined area. You want to keep light within the fiber. Base
shepuryov [24]

Answer:

Explanation:

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sin ( 90 - 25 ) / sinr = μ , μ is the refractive index of the tube , r is angle of refraction in the medium of tube

r = 90 - C where C is critical angle between μ and body medium in which tube will be inserted.

sin ( 90 - 25 ) / sin( 90 - C)  = μ

sin65 / cos C = μ

sinC = 1.33 / μ  , where 1.33 is the refractive index of body liquid.

From these equations

sin65 / cos C = 1.33 / sinC

TanC = 1.33 / sin65

TanC = 1.33 / .9063

TanC = 1.4675

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μ = 1.33 / sinC

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3 years ago
True or false: Everything in the universe works with harmony because of balanced energy
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Answer:

Explanation:

True

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