2 years ago

Why do some objects fall through the air at a different rate then others (this is for science)

1 answer:

4 0

Answer:

the amount of air resistance depends upon the speed of the object, more massive objects fall faster than less massive objects because they are acted upon by a larger force of gravity; for this reason, they accelerate to higher speeds until the air resistance force equals the gravity force.

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Stells [14]

Answer:

40%

Explanation:

Calculate the percent of the mass that is carbon:

$\% mass = \frac{80}{200} \times 100 = 40\%$

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3 years ago

Which of these has a neutral ph? select one:<br> a. distilled water<br> b. salt water<br> c. milk?

lapo4ka [179]

Distilled water has the a neutral ph. Pure water always has a ph of 7.

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3 years ago

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2 years ago

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What is the molar concentration of 5% acetic acid?

larisa [96]

Answer:Vinegar Is 5% Acetic Acid And Its Molarity Is 0.833M.

Explanation:

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3 years ago

The half-life of a certain tranquilizer in the bloodstream is 5050 hours. how long will it take for the drug to decay to 8686%

Novosadov [1.4K]

Using the exponential decay model; we calculate "k"
We know that "A" is half of A0
A = A0 e^(k× 5050)
A/A0 = e^(5050k)
0.5 = e^(5055k)
In (0.5) = 5055k
-0.69315 = 5055k
k = -0.0001371
To calculate how long it will take to decay to 86% of the original mass
0.86 = e^(-0.0001371t)
In (0.86) = -0.0001371t
-0.150823 = -0.0001371 t
t = 1100 hours

4 0

2 years ago