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vitfil [10]
3 years ago
10

which is the of these their statements correctly describes a key difference between aerobic activity and anaerobic activity

Physics
1 answer:
KATRIN_1 [288]3 years ago
8 0
Aerobic uses oxygen to liberate heat while anaerobic is in the absence of oxygen.
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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>

7 0
3 years ago
Why are negative ions usually larger than positive ions
irga5000 [103]
A negative ion is a atom that has an extra electron, but the same # of protons
4 0
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Some people say you can get HIV from insect bites. True or false? Why?
Murljashka [212]
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Can somebody please explain how a compass can be used to find North?
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if the pointy thingy in your compass is pointing north, that means it's being (pulled toward) something near Earth's north pole

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2 years ago
A current of 0.92 A flows past a point in a circuit? How much charge, in units of Coulombs, passes that point in one minute?
Alisiya [41]
<h3><u>Answer;</u></h3>

<u>  = 55.2 Coulombs </u>

<h3><u>Explanation</u>;</h3>

We can determine Charge using the formula

Q =It, where Q is the amount of charge in Coulombs, I is the current in amperes and t is the time in seconds.

I = 0.92 amperes, t = 1 minute or 60 seconds

Charge = 0.92 × 60

          <u>  = 55.2 Coulombs </u>

7 0
3 years ago
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