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Studentka2010 [4]
3 years ago
15

What are the odds of nonsmokers developing cardiovascular disease when compared to smokers?

Physics
2 answers:
77julia77 [94]3 years ago
6 0
The probability ("odds") is smaller for nonsmokers when compared
to smokers.

If we had as much hard, reliable, repeatable, scientific evidence linking
cardiovascular disease with visits to the Empire State Building as we have
linking it with smoking, the Empire State Building would have been torn down
50 years ago.
insens350 [35]3 years ago
3 0

Answer choices are:

a. Nonsmokers are four times more likely to develop cardiovascular disease.

b. Nonsmokers are twice as likely to develop cardiovascular disease.

c. Nonsmokers and smokers are equally likely to develop cardiovascular disease.

d. Nonsmokers are half as likely to develop cardiovascular disease.

____________________________________________________________

Correct answer choice is:

d. Nonsmokers are half as likely to develop cardiovascular disease.

____________________________________________________________

Explanation:

The consequence of previous or existing smoking on specific CVD risk parameters such as blood pressure and cholesterol appears to be of clinically trivial importance in personalities aged 46 years. In additional terms, smoking appears to be beyond all an unconventional risk factor for CVD in the working-age people. Stopping smoking in working age may thus decrease estimated CVD risk approximately to the equivalent level as personages who have never smoked.

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Alcohol of mass 33.2g and density 0.79kg/m³ or 790kg/m³ is mixed with water of 9g. What is the density of the resulting mixture?
KATRIN_1 [288]

Answer:

  0.83 g/cm³

Explanation:

The volume of the alcohol is ...

  (33.2 g)/(0.79 g/cm³) ≈ 42.0253 cm³

The density of water is about 1 g/cm³, so the volume of 9 g of it is ...

  (9 g)/(1 g/cm³) = 9 cm³

The total volume is ...

  42.0253 cm³ +9 cm³ = 51.0253 cm³

The total mass is ...

  33.2 g + 9 g = 42.4 g

So, the resulting density is ...

  (42.4 g)/(51.0253 cm³) ≈ 0.83 g/cm³

The resulting mixture has a density of about 0.83 g/cm³.

_____

<em>Additional comment</em>

Alcohol dissolves in water, so the total volume will be slightly less than 51.0253 cm³. The attached curve shows the result of mixing ethanol and water.

The weight of a mole of ethanol is about 46 g, of water, about 18.02 g. Then the mole fraction of alcohol is ...

  (33.2/46)/(33.2/46 +9/18.02) ≈ 0.59

The volume of the mix is then estimated to be (-1.05 cc/mol)(1.221 mol), or about 1.28 cm³ less than the volume indicated above. That brings the density up to about 0.85 g/cm³.

We're not completely sure of the relevance of this calculation, since many of the applicable parameters are not specified. The point is that <em>the density of the mix will probably be slightly more than the value calculated above</em>. YMMV

3 0
2 years ago
Why does the area around the equator stay about the same temperature year round?
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Axial Tilt and Sun Energy

This axial tilt means that during the Earth's journey around the sun the poles receive varying amounts of sunlight. The equator, however, receives relatively consistent sunlight all year. The consistency of energy means the equator's temperature stays relatively constant all year.
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In a lab, a block weighing 80 N is attached to a spring scale, and both are pulled to the right on a horizontal surface. Frictio
notka56 [123]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

There should be an image that should accompanied your question, I was able to chcek it from other sources. the acceleration of the block when the scale reads 32N is <span>4.0 m/s*s</span>
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enot [183]

Answer:

true dat

Explanation:

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