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Sladkaya [172]
3 years ago
7

Match the microscopes with their useable

Physics
2 answers:
umka21 [38]3 years ago
6 0
Microscopes with life science and physics
erastova [34]3 years ago
5 0

Answer:

there is no question that I can use so sorry

Explanation:

but have a great day :D

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A person who weighs 509,45 N empties her lungs as much as
Masja [62]

Answer:

The weight of the girl = 1045.86 kg/m³

Explanation:

Density: This can be defined as the ratio of the mass of a body to the volume of that body. The S.I unit of density is kg/m³.

From Archimedes principle,

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

⇒ D₁/D₂ = W/U............................... Equation 1.

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)

D₁ = 1045.86 kg/m³

Thus the weight of the girl = 1045.86 kg/m³

<em></em>

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Which statement is the contrapositive of:
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A. water + carbon dioxide + sunlight = oxygen + <u>glucose </u><u>!</u>

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How can you use distance and displacement to describe an object's motion​
andrew11 [14]

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distance can describe the total distance moved and displacement shows how far something has moved from its starting position (in a straight line from point a to point b) the object doesn't have to move in a straight line, but that is how displacement is measured

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What does the term Hubble time mean in cosmology, and what is the current best calculation for the Hubble time?
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